analytical reference materials, standards and high purity ...photo/f831030270.pdf · analytical...

Analytical reference materials,

standards and high purity solvents

2006 / 2007

Industrial

Physical properties Food

Environmental

Environmental

Food and agriculture

Matrix materials

Clinical and forensic

ATCC culturesand bioproducts

Pure materials

Pharmaceutical

Phytochemicals

Chromatography

High purity solvents

Industrial materials

LGC Promochems combination of expertise in analytical

science and experience in international standards offers

laboratories throughout Europe the ideal solution to

sourcing high quality certified reference materials.

Our expert technical support staff provide unrivalled

knowledge in the use of certified reference materials

across a broad range of analytical activities.

Partnerships with the worlds key producers of RMs

Expert local customer service and technical support

Supply of all major pharmacopoeia and RMs

Assistance in finding the right material to suit your needs

Over 25,000 reference materials in our range

For further information or to receive any one of our

catalogues please contact your local office or visit our

website.

www.lgcpromochem.com

France Germany India Italy Poland Spain Sweden UK

Europes most comprehensive

source of reference materials

Contents

Edition 2006/2007 Supporting Laboratory Standards 3

Contents Introduction

Introduction LGC Promochem This catalogue Producers of reference materials The use of reference materials Relevant literature Relevant training courses General ordering information

Application Notes Application Note 1- Comparison of a measurement result with the certified value

9999

11111212

1313

Matrix reference materials

Environmental matrix reference materials

Waters Drinking water Rainwater Fresh water Sea water Spiked/fortified water Miscellaneous

19191920242527

Sediments Freshwater sediments Marine sediments

323253

Soils

60

Sewage sludges 106

Plants Trees and bushes Grasses and crops Aquatic plants Miscellaneous

109109111111112

Ash, particulate and dust Ash and particulate Dust and Fumes

114114116

Occupational hygiene reference materials

Asbestos 120

Filter media 121

Food matrix reference materials

Milk and milk products MUVA reference materials

123126

Meat and meat products 129

Fish and fish products Shellfish Fish

133133136

Cereals and genetically modified crops Wheat Corn Rye Rice Rapeseed Genetically modified crops

144144144145145146146

Contents

4 Supporting Laboratory Standards Edition 2006/2007

Vegetable matter Fruit and vegetables Vegetable oils

150150153

Food Authenticity 154

Food and drink products Quality control reference materials from LGC Processed food Drinks Alcoholic beverage Food supplements

155155155158159159

Animal food products 161

Industrial matrix reference materials

Fertilizers

162

Rocks, clays and minerals Rocks and minerals Clays

163163173

Ores 175

Metals 180

Refractories and carbides 185

Fuels, Oils and lubricants Conostan Oil Analysis Standards Oils and liquid fuels Solid fuels

186186194201

Cement 206

Glass and ceramics 208

Plastics 213

Paint and industrial sludges 214

Miscellaneous 216

Customised standards and CERTAN

CERTAN - The ampoule in the bottle 219

Pesticide custom standards 222

Organic standards quotation request form 227

Inorganic standards quotation request form 229

Elements in oil quotation request form 331

Contaminant standards

Pesticides 235

Camphechlor (Toxaphene) congeners 285

Polyhalogenated compounds Polychloro-n-alkanes Polychlorinated biphenyls (PCBs) PCB metabolites - Chlorohydroxybiphenyls Polychlorinated terphenyls (PCTs) PCB substitute Ugilec Polychlorinated naphthalenes Polychlorinated benzenes Flame retardants Chlorinated dibenzo-p-dioxins and chlorinated dibenzofurans

294294297316316317318319320321

Contents


Hydrocarbons n-Alkane mixtures BTEX mixtures Polycyclic aromatic compounds Standards for the analysis of the mineral oil content Hydrocarbon fuel standards Weathered hydrocarbon fuel standards ASTM Methods for petrochemical analysis

328328329332345346347348

Veterinary medicines and pharmaceuticals 349

Miscellaneous organic compounds Volatile analyte mixtures Semi-volatile analyte mixtures Synthetic musk compounds Explosives and their degradation products Neat reference materials kits ULTRAkits Miscellaneous individual analytes

359359368373374378379384

Organotin compounds 417

Aldehydes / Ketones-DNPH standards 418

Test mixtures for GC and LC 421

Standards for the determination of AOX (DIN 38409-H 14, EN 1485) 422

Standards for the determination of EOX and POX (DIN 38414-S 17) 422

Derivatisation reagents 422

Standards for spectroscopy Single element standards for ICP ULTRA Scientific's EnviroConcentrateTM kits for ICP ULTRA Scientific's certified standards for atomic absorption spectroscopy ULTRA Scientific's EnviroConcentratesTM for atomic absorption spectroscopy

423423430432436

Multielement standards EPA Method 200.7 EPA Method 6010A Standards for ICP/MS

439439441442

Ion chromatography standards 443

Stable isotope labelled standards

Environmental contaminant standards from CIL 449

Dioxin and furan individual standards 453

Dioxin & furan method standards, standard mixtures & reference materials U.S. EPA Method 1613 standard mixtures Performance evaluation standards U.S. EPA Method 23 standard mixtures U.S. EPA Method 8290 standard mixtures U.S. EPA Method 8280 standard methods JIS Methods K0311 and K0312 dioxin/furan standard mixtures European Air Method EN-1948 standard mixtures Unlabelled dioxin & furan standard mixtures Isotope labelled dioxin & furan standard mixtures Mono-tri dioxin & furan standard mixtures Dioxin & furan & PCB standard mixtures Non-2,3,7,8-containing standard mixtures Chlorodioxin & chlorofuran window defining mixtures TCDD & TCDF column performance mixtures Bromodioxin & bromofuran standard mixtures

458458460465466467469472473473474474477479480481

Contents


PCB standards and standard mixtures Isotope labelled PCB standards Unlabelled certified PCB standards Unlabelled PCB standards U.S. EPA Method 1668A standard mixtures WHO PCB mixtures Japanese Industrial Standard (JIS) Methods K0311 and K0312 standard mixtures Toxic and predominant PCB standard mixtures Isotope labelled PCB standard mixtures Unlabelled PCB standard mixtures Unlabelled PCB mixtures PCB metabolites Unlabelled methyl sulfone PCB standards

483483485487495497500502504505506507507

Brominated flame retardant standards Isotope labelled brominated diphenyl ether (BDE) standards Unlabelled brominated diphenyl ether (BDE) standards U.S. EPA Method 1614 standard mixtures Isotope labelled BDE standard mixtures Unlabelled BDE standard mixtures BDE technical mixtures Isotope labelled polybrominated biphenyl (PBB) standards Unlabelled polybrominated biphenyl (PBB) standards Tetrabromobisphenol A (TBBPA) and hexabromocyclododecane (HBCD) standards BDE-metabolites

508508508510511513515515515515515

Polycyclic aromatic hydrocarbon (PAH) Carbon-13 labelled polycyclic aromatic hydrocarbons (PAH) standards Deuterated polycyclic aromatic hydrocarbon (PAH) standards Unlabelled polycyclic aromatic hydrocarbon (PAH) standards Isotope labelled PAH standard mixtures PAH metabolites

516516516518519519

Polychlorinated naphthalene (PCN) standards Isotope labelled polychlorinated naphthalene (PCN) standards Unlabelled polychlorinated naphthalene (PCN) standards Halowax technical mixtures Polychlorinated naphthalene (PCN) standard mixtures

520520520520520

Substituted benzothiophenes 521

Priority pollutant standard mixtures U.S. EPA Method 1653 standard mixtures U.S. EPA CLP SOW OLC03.2 standards DMC standard mixtures U.S. EPA Methods 1624/1625 standard mixtures Isotope labelled pollutant cocktails Isotope labelled chlorobenzene & chlorophenol cocktails

522522523523526526

Priority pollutants, endocrine disruptor and chemical contaminant standards Food and drinking water analysis standards Pharmaceutical & personal care product (PPCP) standards Phthalate & phthalate metabolite standards Tobacco metabolite and flavoring standards Nonylphenol, nonylphenol ethoxylate, and nonylphenol carboxylate standards Halogenated and substituted benzene and phenol standards Endocrine disrupting compounds and xenoestrogen standards Isotope labelled chlorinated diphenyl ether standards Unlabelled chlorinated diphenyl ether standards Other industrial chemicals Explosive standards Individual n-alkane standards n-Alkane standard mix Priority pollutant standards

528528528529530530530531533533534534534535535

Pesticide and chemical weapon standards Organophosphorous pesticide metabolites Pyrethroid pesticides Individual chlorinated cyclodiene pesticide standards Individual pesticide standards and pesticide metabolite standards Pesticide Standard Mixtures Chemical weapon metabolite standards

542542542542543547548

Contents


ULTRAcheck and standards for EPA methods

ULTRAcheck blind, quality control check standards Inorganic blind QC samples for drinking water analysis Organic blind QC samples for drinking water analysis Random analyte samples for the EPA 500 Methods Inorganic blind QC samples for waste water analysis Organic blind QC samples for waste water analysis Blind QC samples for underground storage tanks, hydrocarbon fuels and TPH Blind QC samples for aroclors

553553554556557558560560

EPA 500 Methods 561

EPA 600 Methods 581

EPA 8000 Methods 601

Food specific standards

Natural products and food constituents Phytochemical/Nutraceutical standards in solution Lipid Standards

629629629

Amino acids 634

Food additives Colour standards Preservatives Antioxidants Sweeteners

634634635636637

Mycotoxins 637

Shellfish toxins 639

Miscellaneous food related standards 640

Tobacco metabolites and flavourings 640

Certified high purity standards

Elemental analysis 643

Stochiometry 645

Organo-metallic compounds 646

Speciation 647

Isotopes 647

Physical property standards

GlowellTM standards 653

Thermal properties Enthalpy and heat capacity Melting, freezing and triple points Flash point Combustion calorimetry Solution calorimetry Vapour pressure Thermal conductivity Thermal expansion Thermal resistance Glass liquidus temperature Temperature measuring devices

654654655657657657657658658658659659

Contents


Particles and surface properties Particle size Surface area Micropore volume and width Particle flow Electrophoretic mobility Microhardness Suface roughness Surface tension Depth profiling Coatings Abrasive wear

660660663663664664664665666666667667

Optical properties Molecular absorption and luminescence Refractive index Reflectance Optical density Optical rotation Optical fibres Colour measurement Photography Microscopy

668668670671671671672672672672

Ion activity pH calibration Biological buffer systems pD calibration Ion-selective electrode calibration Electrolytic conductivity Reagecon electrolytic conductivity standards Conductivity standards according to the European Pharmacopoeia (Chapter 2)

673673674674675675676677

Electrical properties Electrical resistivity and conductivity Superconducting critical current Dielectric constant

678678678678

Viscosity Viscosity of glass Viscosity fixpoints Viscosity oil standards

679679679679

Polymeric properties Individual molecular weight polymer standards Molecular weight and melt flow

682682682

Miscellaneous Relative humidity Scanning electron microscope X-ray stage calibration X-ray diffraction Density Chemical resistance (durability) of glass Multi-test verification materials (MTVMs) Mechanical properties Physico-chemical properties Miscellaneous

684684684684684685687687688689689

High purity solvents

Reagents / Sorbents 694

Picograde-solvents and high purity solvents for HPLC (Optigrade) 695

Indexes

Trademarks 718

Code number index 719

Product index 746


List of LGC Promochem offices

Introduction

France

LGC Promochem

6, Rue Kastler

B.P. 83076

67123 Molsheim

France

Tel +33 (0)3 88 04 82 82

Fax +33 (0)3 88 04 82 90

Email [email protected]

Countries served

- Algeria

- Belgium

- Benin

- Burkina

- Burundi

- Cameroon

- France

- Gabon

- Ivory Coast

- Jordan

- Lebanon

- Libya

- Liechtenstein

- Luxembourg

- Madagascar

- Mali

- Mauritania

- Monaco

- Morocco

- Rwanda

- Senegal

- Syria

- Tanzania

- Tunisia

Germany

LGC Promochem

Mercatorstrasse 51

46485 Wesel

Germany

Tel +49 (0)281 9887 0

Fax +49 (0)281 9887 199


Countries served

- Albania

- Austria

- Bosnia-Herzegovina

- Bulgaria

- China (Hong Kong, Singapore)

- Croatia

- Cyprus

- Czech Republic

- Egypt

- Germany

- Greece

- Hungary

- Iran

- Israel

- Japan

- Kazakhstan

- Korea

- Macau

- Macedonia

- Montenegro

- Netherlands

- Romania

- Russia

- Serbia

- Slovenia

- Switzerland

- Taiwan

- Thailand

- Turkey

- Vietnam

- Yugoslavia

India

LGC Promochem

P.O. Box 8061

No.142, 3rd Floor, 5th Cross

Rajmahal Vilas Extension

Bangalore 560 080

India

Tel +91 (0)80 2361 1256

Fax +91 (0)80 2361 3859


Countries served

- Bangladesh

- India

- Malaysia

- Nepal

- Pakistan

Italy

LGC Promochem

Via Venezia, 23

20099 Sesto San Giovanni

Milan

Italy

Tel +39 02 2412 6830

Fax +39 02 2412 6831


Countries served

- Italy

Poland

LGC Promochem

ul. M. Konopnickiej 1

Dziekanw Lesny

05-092 Lomianki

Poland

Tel +48 (0)22 751 31 40

Fax +48 (0)22 751 58 45


Countries served

- Belorussia

- Lithuania

- Poland

- Slovakia

- Ukraine

Spain

LGC Promochem

C/Salvador Espriu 59, 2 planta

08005 Barcelona

Spain

Tel +34 93 308 4181

Fax +34 93 307 3612


Countries served

- Andorra

- Portugal

- Spain

- Latin America

Sweden

LGC Promochem

Box 1737

501 17 Bors

Sweden

Tel +46 (0)33 20 90 60

Fax +46 (0)33 20 90 79


Countries served

- Denmark

- Estonia

- Finland

- Iceland

- Latvia

- Norway

- Sweden

United Kingdom(Head office)

LGC Promochem

Queens Road

Teddington

Middlesex

TW11 0LY

United Kingdom

Tel +44 (0)20 8943 7565

Fax +44 (0)20 8943 7554

Email

[email protected]

Countries served

- Australia

- Bermuda

- Botswana

- Brunei

- Canada

- Channel Islands

- Ethiopia

- Ghana

- Indonesia

- Ireland

- Kenya

- Kuwait

- Malta

- New Zealand

- Nigeria

- Oman

- Philippines

- Qatar

- Saudi Arabia

- South Africa

- Tobago

- Trinidad

- United Arab Emirates

- United Kingdom

- USA

- Yemen

- Zambia

- Zimbabwe

List of LGC Promochem offices

For countries not listed above, please contact our head office.

Your LGC Promochem account number

Your contact at LGC Promochem is

Name:

Tel:

Fax:

Email:

Introduction


Introduction LGC Promochem

LGC Promochem is a leading supplier of reference materials. Through close co-operation with highly reputable manufacturers worldwide we are able to offer laboratories improved access to reference materials designed to suit an increasingly large range of analyses.

Our network of offices in Europe and India together with our long experience in selling reference materials make it possible to provide the highest levels of service and technical support to all our customers.

This catalogue

For the first time this new catalogue Analytical reference materials, standards and high purity solvents combines the products previously featured in the catalogues for the environmental, food and industrial sectors including the stable isotope labelled standards from Cambridge Isotope Laboratories, high purity solvents from LGC Promochem and standards for physical testing.

New in this catalogue

This catalogue provides a fully updated listing of all relevant reference materials, standards and solvents. Products added since the last catalogues were issued include:

Catalogue custom pesticide standards from ULTRA Scientific, semi-customised pesticide standards at catalogue item prices

New isotope labeled products from Cambridge Isotope Laboratories, pharmaceutical and personal care products, metabolites of PAHs, BDEs and pesticides and much more

Certified reference materials from IRMM for veterinary residue analysis

Matrix materials from NIST with values for brominated diphenyl ethers

Certified Pesticide standards from NMI in Australia

Glowell light output standards

Solvents for LC/MS

Producers of reference materials

This catalogue brings together products from a wide variety of sources. There are certified reference materials from national measurement institutes and also reference materials and standards from many different producers. All products are supplied with a certificate of analysis although the lay out and format of the certificates will vary according to the producer. A list of the producers is given below.

LGC

LGC has a long history in the development and validation of analytical methods and the reference materials production facility at LGC, complements this expertise. LGC offers a range of chemical and bio-analytical laboratory services and reference materials across a variety of industries including: food and agriculture, environment, life sciences, chemicals and forensic science. LGC also plays a pivotal role in a number of programmes with both government and industry to improve analytical standards and performance.

IRMM

BCR and IRMM reference materials (BCR is a registered trademark of JRC-EC-IRMM) are the products of

both research funding and direct action programmes of the European Commission, in which new or improved measurement or testing methods are developed. These programmes are aimed at improving, harmonising or standardising measurements and testing in the European Union.

As an authorised distributor of BCR reference materials LGC Promochem currently holds stock of more than 4000 units of certified BCR and IRMM reference materials under carefully controlled and monitored conditions.

European Reference Materials (ERM)

The ERM range of reference materials was launched in May 2004. It is the result of collaboration between

three major reference material producers, LGC in the UK, the Institute for Reference Materials and Measurement (IRMM) in Belgium and Bundesanstalt fr Materialforschung und Prfung (BAM) in Germany. The partners are committed to using the most advanced principles for the production of certified reference materials. The certified values have clearly defined and stated traceability and are internationally recognized through participation of the partners in key comparisons organized by the Bureau International des Poids et Mesures (BIPM). All ERM materials are subject to rigorous homogeneity and stability testing guaranteeing the certified values for every unit over its complete shelf life.

Introduction


Cambridge Isotope Laboratories

Cambridge Isotope Laboratories, Inc. (CIL) is a world leader in the field of isotope separations and has the capacity to produce 120 kilograms of carbon-13 and 250 kilograms of oxygen-18 annually. For more than 20 years, CIL has specialised in the development, production, and marketing of stable (non-radioactive) isotopes and chemical compounds labelled with stable isotopes to become the Worlds premier producer of stable isotope labelled compounds. In the environmental field CIL offer a wide range of stable isotope labelled contaminant standards designed for use with the high accuracy Isotope Dilution Mass Spectrometry (IDMS) technique.

This catalogue includes the full range of environmental contaminant standards from Cambridge Isotope Laboratories. For the first time these products have been incorporated within an LGC Promochem catalogue and featured in a special chapter of their own.

ULTRA Scientific

ULTRA Scientific based in the USA is recognised as a leader in the chemical standards industry. LGC Promochem works in close partnership with ULTRA to ensure that laboratory requirements for high quality environmental standards are satisfied. ULTRAs organic and inorganic calibration standards are widely used in the analysis of drinking water, waste water, soils, sediments, foods, cosmetics and other products. Through LGC Promochem ULTRA is also able to provide customised standards within manageable time frames and at affordable prices.

The ULTRA Scientific manufacturing, quality control and distribution system is registered to the International ISO 9001 standard. The quality control laboratory at ULTRA Scientific is accredited to the ISO 17025. Since 2005 LGC Promochem has been the exclusive distributor of ULTRA products in Europe.

IPO (Institute of Industrial Organic Chemistry)

IPO is a significant research and development centre for the Polish chemical industry. They have been producing neat pesticide reference materials for more than 20 years. IPO products are individual high purity organic compounds or mixtures of definite composition, supplied with a certificate of analysis or statement of purity. The Analytical Department of IPO has implemented a Quality Management System for manufacturing of analytical standards of organic compounds. The system fulfills the requirements of PN-EN ISO 9001:2001 standard (identical with ISO 9001:2000) and was certified in 2002 by the IQNET and PCBC (Polish Centre for Testing and Certification).

LGC Promochem is the official distributor of IPO standards.

Cerilliant

Cerilliant Corporation is a leading supplier of chemical standards for environmental analysis and forensic drug testing and for providing custom chemical synthesis. They were the first to produce Carbon-13 labelled chlorinated dioxins and furans in co-operation with Cambridge Isotope Laboratories, to meet the increasing demand for isotope-labelled reference standards. From raw materials analysis to continuing shelf-life studies, Cerilliants ISO 9001 system requires multiple checks to ensure product conformance.

CONOSTAN Oil Analysis Standards

CONOSTAN is a pioneer and global leader in the development, manufacturing, and marketing of oil analysis reference materials/standards. The pioneering innovation continues with introductions of standards for lubricant product analysis that are benchmarks for quality, accuracy, precision, and traceability. Their quality program is certified under ISO 9001:2000.

The National Institute of Standards and Technology (NIST)

NIST produces standard reference materials (SRMs). Based in the United States, NIST has provided reference materials to industry and commerce for nearly 100 years. NIST collaborates with companies to provide academia and industry with SRMs for expanding areas such as air and water pollution, which are international issues.

The National Research Council of Canada (NRC)

NRC produces certified reference materials (CRMs) through a program jointly operated by the Institute for National Measurement Standards (INMS), in Ottawa, Ontario and the Institute for Marine Sciences (IMB), in Halifax, Nova Scotia. The NRC range includes a variety of inorganic and organic CRMs.

The National Water Research Institute (NWRI)

NWRI is Canadas largest freshwater research establishment. It carries out a national program of research and development in the aquatic sciences in partnership with the Canadian and international freshwater science communities.

Introduction


Others

Materials from the following organisations are also included in this catalogue: - AEA Technology, UK

- Agricultural Research Centre, Finland

- British Glass, UK

- CANMET, Canada

- Cargille Laboratories INC, USA

- Central Office of Measures (GUM), Poland

- Centre for Ecological Research, Poland

- Chemipan, Poland

- Czech Metrological Institute, Czech Republic

- Faculty of Physics and Nuclear Techniques, Poland

- Federal Institute for Materials Research and Testing (BAM), Germany

- G E Panametrics, Ireland

- H & D Fitzgerald Ltd, UK

- Institute of Dyes and Organic Products, Poland

- Institute of Industrial Organic Chemistry (IPO), Poland

- Institute of Nuclear Chemistry and Technology, Poland

- LabAnalityka, Poland

- Institute of Nuclear Chemistry and Technology, Poland

- International Atomic Energy Agency, Austria

- National Institute for Environmental studies (NIES), Japan

- National Research Centre for Certified Reference Materials, China

- National Food Administration, Sweden

- Poulten, Selfe & Lee Ltd, UK

- R. T. Corporation, USA

- Society of glass technology, UK

- Sigma-Aldrich

- Stanhope-Seta, UK

- Swedish Meats R&D, Sweden

The use of reference materials

Reference materials are instrumental in ensuring the reliability of analytical measurements and so avoiding the use of poor quality data as the basis of decision making.

When choosing a matrix reference material for a particular application the analyst should consider the following factors before selecting a material:

- Matrix match and potential interferences - Analytes - Measurement range - Measurement uncertainties - Certification procedures used by the producer - Documentation supplied with the material (e.g. certificate or report).

Relevant literature

Applications of Reference Materials in Analytical Chemistry VAM V. Barwick, S. Burke, R. Lawn, P. Roper and R. Walker RSC

Reference Materials in Analytical Chemistry A Guide for Selection and Use A. Zchunke published by Springer-Verlag.

Reference Materials for Chemical Analysis Certification, Availability and Proper Usage M. Stoeppler, W.R. Wolf, P.J. Jenks published by Wiley-VCH.

Proficiency Testing in Analytical Chemistry, R.Lawn, M.Thompson and R.Walker published by The Royal Society of Chemistry.

General ordering information


Relevant training courses

A range of training courses is available from LGC to help laboratory managers and analysts demonstrate competence in, and keep abreast of, quality assurance issues and practices. LGCs analytical quality training programme includes:

- Achieving traceability in chemical testing

- Using proficiency testing in the analytical laboratory

- Method validation

- Principles and practice of measurement uncertainty in chemical testing laboratories

- Quality systems in testing laboratories

- Statistics for analytical chemists

- Further statistical tools for analytical chemists

The majority of the courses are run in Teddington, South West London. In addition, LGC can provide training for groups of staff at your own site, where the courses can be customised to meet your exact needs.

For further information, please contact:

Lorraine Didinal LGC Training Centre Tel: +44 (0)20 8943 7631 Queens Road Fax: +44 (0)20 8943 7314 Teddington, Middlesex Email: [email protected] TW11 0LY, UK Web: www.lgc.co.uk

General ordering information Prices and delivery procedures are shown in the price list that accompanies this catalogue, or are available

from your local LGC Promochem sales office. For products requiring special delivery procedures (cooled shipping, dangerous goods, etc) additional charges will be applied.

Please check with your local LGC Promochem sales office for detailed procedures and transport charges where applicable.

Unless otherwise agreed in advance and in writing, orders are accepted only against LGC Promochems standard terms and conditions of sale.

Once delivered to the customer, reference substances are not returnable. For this reason it is very important for users to be certain that the product ordered meets their needs.

LGC Promochems technical staff is available to advise on the use and suitability of a particular product. Customers requiring assistance with the use or application of a particular reference substance should contact their local LGC Promochem office, contact details are provided at the beginning of this catalogue.

For further information please contact any of the offices listed on the inside cover or visit www.lgcpromochem.com.

Application Notes


Application Notes

Application Note 1 Comparison of a measurement result with the certified value

Author: Thomas Linsinger European Commission - Joint Research Centre Institute for Reference Materials and Measurements (IRMM) Retieseweg 111, 2440 Geel, Belgium Email: [email protected]; www.erm-crm.org

The comparison of a measurement result on a certified reference material with the certified value is explained. The method compares the difference between the certified and measured values with its uncertainty, i.e. the combined uncertainty of certified and measured value. Guidance on how to determine the standard uncertainties of certified values as well as standard uncertainties of measurement results is given.

Introduction

One of the most frequent applications of certified reference materials is validation of measurement procedures. To achieve this, measurements on certified reference materials are performed and the results are compared with the certified values. This comparison is often described in a qualitative manner such as measurement results agree, agree well or even agree perfectly with the certified values. However, a structured and quantitative approach exists that allows a statement of the evidence of any bias to be made. This approach takes into account the certified value, the measurement result and their respective uncertainties. These uncertainties are subsequently combined and the expanded uncertainty is compared to the difference. This note will explain the procedure of the uncertainty estimation and the comparison of results with a certified value.

Basic Principles

After the measurement of a CRM the absolute difference between the mean measured value and the certified value can be calculated as

CRMmm cc =

m absolute difference between mean measured value and certified value

cm mean measured value

cCRM certified value

Each measurement has an uncertainty um as described in the ISO Guide to the Expression of Uncertainty in Measurement (GUM) [1] and the Eurachem/CITAC Guide Quantifying Uncertainty in Analytical Measurement [2]. This means, any measurement result is only known within the limits of this uncertainty. Similarly, the certified value of a CRM is only known with a specified uncertainty uCRM stated on the certificate. Uncertainties are usually expressed as standard deviations, but only the variances (the squared standard deviations) are additive. The uncertainty of m is u, that is calculated from the uncertainty of the certified value and the uncertainty of the measurement result according to

22CRMm uuu +=

u combined uncertainty of result and certified value (= uncertainty of m)

um uncertainty of the measurement result

uCRM uncertainty of the certified value

The expanded uncertainty U, corresponding to a confidence interval of approximately 95 %, is obtained by multiplication of u by a coverage factor (k), usually equal to 2.

= uU 2

U expanded uncertainty of difference between result and certified value

To evaluate method performance, m is compared with U: If m U then there is no significant difference between the measurement result and the certified value.

Application Note 1


Determination of the individual uncertainties

Uncertainty of the certified value The expanded uncertainties UCRM of each certified value are given on the certificate. Each ERM-certificate also contains in a footnote an explanation of the derivation of the uncertainty (see Figs. 1 and 2). In most cases, the coverage factor is explicitly stated (an example can be seen in Fig. 1). The standard uncertainty, uCRM, of the certified value is obtained by dividing the stated expanded uncertainty by the coverage factor. In some cases, the uncertainty is the 95 % confidence interval of the mean of laboratory means (for an example see Fig. 2). In this case, the t-factor for a 95 % confidence interval with n-1 degrees of freedom (n being the number of laboratories) needs to be determined from statistical tables. Alternatively, the factor can be derived in MS Excel using the function tinv(0.05, n-1). The standard uncertainty of the certified value uCRM is then obtained by dividing the stated expanded uncertainty by the t- factor.

Uncertainty of the measured value

According to ISO/IEC 17025 [3], measurement uncertainties must be known for each measurement. In the absence of full uncertainty budgets, several approximations exist (ranked in decreasing usefulness) to estimate measurement uncertainties: 1) The within-laboratory reproducibility standard deviation (intermediate precision) as determined from e.g. quality control charts can be used as (rough) estimation of um. 2) A reproducibility standard deviation from other sources (e.g. the certification reports available on www.erm-crm.org or an interlaboratory comparison) can be used after it has been proven that the laboratorys performance is equivalent to the performance of the participants in the study in question. 3) The standard deviation of the measurements over a longer time period can be used as very rough estimation. This estimation is typically underestimating the real uncertainty.

Figure 1: Certificate with expanded uncertainty. The standard uncertainty of the certified value (uCRM) is obtained by dividing the expanded uncertainty (in this case: 0.4) by the coverage factor (in this case: 2; marked ).

Figure 2: Certificate with a confidence interval. The standard uncertainty of the certified value (uCRM) is obtained by dividing the expanded uncertainty (in this case: 4 for CH3Hg) by the coverage factor (in this case: 2.228; marked)

Application Note 1


Example ERM-BB445 (PCBs in pork fat)

PCB 52: certified value = (12.9 0.9) g/kg. Footnote 2 of the certificate states that a coverage factor of k = 2 was applied. uCRM is therefore 0.9/2 g/kg= 0.45 g/kg. The laboratory measurements gave an average of (14.3 1.8) g/kg (single standard deviation of 6 measurements spread over three weeks). The standard deviation is divided by the square root of the number of measurements, as the average of the results is compared with the certified value. um is therefore estimated as 1.8/6 g/kg = 0.74 g/kg.

=== g/kg 3.149.12CRMmm cc

87.0g/kg 45.074.0 2222 =+=+= CRMm uuu The expanded uncertainty U is 2u = 1.7 g/kg. This is larger than the difference m between the certified and the measured value. The measured mean value is therefore not significantly different from the certified value.

1International Standards Organisation (1993) Guide to the expression of uncertainty in measurement. ISO, Geneva. ISBN 92-67-10188-9 2Ellison SLR, Roesslein M, Williams A (eds) (2000) EURACHEM/CITAC Guide: Quantifying uncertainty in analytical measurement, 2nd edn. EURACHEM. ISBN 0-948926-15-5. Available at http:// www.eurachem.com 3International Standards Organisation (1999) ISO/IEC 17025: General Requirements for the competence of calibration and testing laboratories. ISO, Geneva

1.4 g/kg

g/kg


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Matrix reference materials


The current ERM range

comprises 177 premium quality

certified reference materials,

as pure standards or matrix

materials, applicable to a diverse

range of chemical analyses

including:

Environmental

Food

Industrial

Clinical

Forensic

This range will grow and become

more comprehensive as new

products with relevance to

European legislation and testing

methods are released on a

regular basis.

(www.erm-crm.org)

European Reference Materials - ERM

EEuurrooppeeaann RReeffeerreennccee MMaatteerriiaallss ((EERRMM)) represent a new

standard in reference materials and help to provide

assurance of the reliability and comparability of results

from chemical analysis.

The EERRMM combines the expertise of three major

European reference material producers

The Institute for Reference Materials and

Measurements (IRMM) of the European

Commission's Directorate General Joint

Research Centre, Belgium

The Bundesanstalt fr Materialforschung

und -prfung (BAM), Germany

LGC, United Kingdom

EERRMM certified reference materials (CRMs) are of the

highest quality, with clearly defined and stated

traceability of the certified values.

All EERRMM CRMs are peer reviewed by panels of

experts with representatives from each of the

participating producers.




Waters Code Product Unit

Drinking water ERML-CA010a Hard drinking water - Metals

Produced by adding the required salts to tap water (London, Teddington) and acidifying to a pH

Waters


Code Product Unit

BCR-408 Simulated rainwater - Low contents Produced by adding solutions of the required salts to ultra pure water. Sterilised using gamma irradiation

Certified values

Ca ......................... 7.68 mol/kg Mg..........................6.14 mol/kg SO4 ....................... 10.5 mol/kg Cl........................... 67.3 mol/kg Na..........................42.0 mol/kg H3O ....................... 16.6 mol/kg NO3........................20.1 mol/kg Indicative values for K, NH4

100 mL

BCR-409 Simulated rainwater - High contents Produced by adding solutions of the required salts to ultra pure water. Sterilised using gamma irradiation

Certified values

Ca ......................... 15.5 mol/kg K ............................4.25 mol/kg NH4 ........................ 106 mol/kg Cl............................ 113 mol/kg Mg..........................12.3 mol/kg NO3 ....................... 78.1 mol/kg H3O ....................... 48.0 mol/kg Na..........................82.9 mol/kg SO4 ....................... 53.2 mol/kg

100 mL

NWTMRAIN-95 Simulated rainwater - Trace elements Certified values

Al................................... 1.7 g/L Cr.................................0.79 g/L Pb................................ 0.29 g/L As................................ 1.07 g/L Cu..................................6.2 g/L Se................................ 0.74 g/L Ba................................ 0.73 g/L Fe ................................24.2 g/L Sb................................ 0.35 g/L Be................................ 0.27 g/L Li..................................0.39 g/L Sr .................................. 1.7 g/L Bi................................. 0.63 g/L Mn..................................6.1 g/L Tl ................................. 0.33 g/L Cd ............................... 0.48 g/L Mo................................0.17 g/L U ................................. 0.25 g/L Co ............................... 0.22 g/L Ni .................................0.80 g/L V.................................. 0.64 g/L Indicative values for Sn, Ti, Ca, Mg, K, Na

500 mL

NWRAIN-97 Rain sample - Major ions and nutrients The sample was collected from a greenhouse roof in Grimsby, Ontario. It was centrifuged and filtered and several years later was modified to represent acid rain by addition of nitric and sulfuric acids. Many of the 52 laboratories which participated in the PE studies are accredited and traceable to NIST and other CRMs.

Certified Values

Alkalinity, Gran Titn (as CaCO3) .............. 1.72 mg/L NO3 + NO2 (as N)...................................... 2.08 mg/L Al............................................................. 0.031 mg/L K.............................................................. 0.153 mg/L NH3 (as N)................................................. 0.18 mg/L SiO4 (as Si) ............................................. 0.111 mg/L Ca ............................................................. 2.64 mg/L Na............................................................ 0.276 mg/L Cl............................................................. 0.526 mg/L SO4............................................................ 5.28 mg/L DOC................................................................... 0.75 pH....................................................................... 4.50 Mg ........................................................... 0.934 mg/L Specific Conductance .............................43.8 S/cm NO3(IC, as N)............................................ 2.09 mg/L Indicative values for Colour (Hazen units), DIC and Total Kjeldahl Nitrogen (TKN)

500 mL

Fresh water BCR-479 Fresh water - Nitrate, low level

Produced by adding a solution of the required salt to ultra pure water. Final pH was around 6.8

Certified value

NO3 ........................ 214 mol/kg

100 mL

BCR-480 Fresh water - Nitrate, high level Produced by adding a solution of the required salt to ultra pure water. Final pH was around 6.8

Certified value

NO3 ........................ 885 mol/kg

100 mL

NIST-1640 Natural water - Trace elements Collected from Clear Creek, CO, filtered and stabilised with HNO3 at a concentration of 0.5 mol/L

Certified values

Ag.............................. 7.62 g/kg Cd............................22.79 g/kg Pb............................ 27.89 g/kg Al.................................. 52 g/kg Co............................20.28 g/kg Sb............................ 13.79 g/kg As............................ 26.67 g/kg Cr...............................38.6 g/kg Se............................ 21.96 g/kg B.............................. 301.1 g/kg Fe ..............................34.3 g/kg Sr ............................ 124.2 g/kg Ba............................ 148.0 g/kg Mn............................121.5 g/kg V.............................. 12.99 g/kg Be............................ 34.94 g/kg Mo............................46.75 g/kg Indicative values for Ca, Cu, K, Li, Mg, Na, Ni, Rb, Si, Tl, Zn

250 mL

Waters


Code Product Unit

NIST-1643e Simulated fresh water - Trace elements NIST-1643e simulates the elemental composition of fresh water. Nitric acid is present at a concentration of approximately 0.8 mol/L to stabilise the trace elements.

Certified values

Ag ....................1.036 g/kg................1.062 g/L Al....................138.33 g/kg................141.8 g/L As.....................58.98 g/kg................60.45 g/L B ......................154.0 g/kg................157.9 g/L Ba ................... 531.0 g/kg...............544.2 g/L Be ....................13.64 g/kg................13.98 g/L Bi......................13.75 g/kg................14.09 g/L Ca ...................31500 g/kg...............32300 g/L Cd ....................6.408 g/kg................6.568 g/L Cr .....................19.90 g/kg................20.40 g/L Co ....................26.40 g/kg................27.06 g/L Cu ....................22.20 g/kg................22.76 g/L Fe.......................95.7 g/kg..................98.1 g/L K .......................1984 g/kg.................2034 g/L Li ........................17.0 g/kg..................17.4 g/L Mg.....................7841 g/kg.................8037 g/L Mn....................38.02 g/kg................38.97 g/L Mo....................118.5 g/kg................121.4 g/L Na ...................20230 g/kg...............20740 g/L Ni .....................60.89 g/kg................62.41 g/L Pb ....................19.15 g/kg................19.63 g/L Rb ....................13.80 g/kg................14.14 g/L Sb ....................56.88 g/kg................58.30 g/L Se ....................11.68 g/kg................11.97 g/L Sr .....................315.2 g/kg................323.1 g/L Te.......................1.07 g/kg..................1.09 g/L Tl......................7.263 g/kg................7.445 g/L V ......................36.93 g/kg................37.86 g/L Zn.......................76.5 g/kg..................78.5 g/L

250 mL

NIST-1641d Natural water - Mercury Mercury in 2% (v/v) HNO3 initially stabilised with 1 mg/kg gold

Certified value:....... 1.590 mg/kg

10 x 10 mL

BCR-609 Ground water - Trace elements (low level) The material has been filtered at 0.45 m and acidified with HNO3 to around pH 1.5

Certified values

Al............................... 47.7 g/kg Cd............................0.164 g/kg Pb ............................. 1.63 g/kg As................................ 1.2 g/kg Cu..............................2.48 g/kg

500 mL

BCR-610 Ground water - Trace elements (high level) The material has been filtered at 0.45 m and acidified with HNO3 to around pH 1.5

Certified values

Al................................ 159 g/kg Cd..............................2.94 g/kg Pb ............................. 7.78 g/kg As.............................. 10.8 g/kg Cu..............................45.7 g/kg

500 mL

BCR-611 Ground water - Bromide (low level) (Based on IC measurements) The material has been filtered at 0.45 m and sterilised by autoclaving

Certified value

Br ................................. 93 g/kg

4 x 25 mL

BCR-612 Ground water - Bromide (high level) (Based on IC measurements) The material has been filtered at 0.45 m and sterilised by autoclaving

Certified value

Br ............................... 252 g/kg

4 x 25 mL

BCR-616 Artificial ground water - Trace elements, low carbonate content Produced by adding solutions of the required salts to ultra pure water. Sterilised by autoclaving

Certified values

Ca ............................ 38.5 mg/kg Mg ............................23.9 mg/kg NO3 .......................... 50.4 mg/kg Cl ............................. 49.8 mg/kg Mn ........................0.0197 mg/kg PO4 .......................... 3.36 mg/kg K .............................. 0.58 mg/kg Na.............................61.5 mg/kg SO4 .......................... 57.3 mg/kg

75 mL

BCR-617 Artificial ground water - Trace elements, high carbonate content Produced by adding solutions of the required salts to ultra pure water. Sterilised by autoclaving

Certified values

Ca ............................ 14.6 mg/kg Mg ............................7.32 mg/kg NO3 .......................... 25.8 mg/kg Cl ............................. 26.4 mg/kg Mn ..........................0.050 mg/kg SO4 .......................... 26.3 mg/kg K .............................. 9.93 mg/kg Na.............................14.6 mg/kg

75 mL

Waters


Code Product Unit

LGC6019 River water - Trace elements Collected from the River Thames downstream of Henley-on-Thames at Aston, U.K. Filtered at 0.7 m and then at 0.45 m. Stabilised at pH 2 by the addition of concentrated HNO3. Certified values

Al.................................... 73 g/L Cu................................15.4 g/L Na .............................. 24.7 mg/L Ca ............................... 109 mg/L Fe .................................287 g/L Pb.................................. 5.2 g/L Cd ............................... 0.11 g/L K .................................4.78 mg/L Zn................................ 59.7 g/L Cr ................................ 0.78 g/L Mg...............................4.62 mg/L

250 mL

LGC6020 River water - Anions Collected from the River Thames downstream of Henley-on-Thames at Aston, U.K. Filtered at 0.7 m and then at 0.45 m. Certified values

Cl................................ 38.5 mg/L PO4 ...............................1.1 mg/L NO3 ............................ 39.4 mg/L SO4 .............................53.2 mg/L

250 mL

NRCSLRS-4 River water - Trace elements Collected at a depth of 2-3 metres in the Ottawa River at Chenaux, Ontario, Canada

Certified values

Al.................................... 54 g/L Cu................................1.81 g/L Pb.............................. 0.086 g/L As................................ 0.68 g/L Fe .................................103 g/L Sb................................ 0.23 g/L Ba................................ 12.2 g/L K .................................0.68 mg/L Sr ................................ 26.3 g/L Be.............................. 0.007 g/L Mg.................................1.6 mg/L U ............................... 0.050 g/L Ca ................................ 6.2 mg/L Mn................................3.37 g/L V.................................. 0.32 g/L Cd ............................. 0.012 g/L Mo................................0.21 g/L Zn................................ 0.93 g/L Co ............................. 0.033 g/L Na.................................2.4 mg/L Cr ................................ 0.33 g/L Ni .................................0.67 g/L

500 mL

New NWPERADE-20 Soft river water - Major ions and nutrients Certified Values

Alkalinity, Gran Titn (as CaCO3) .............. 6.35 mg/L Nitrate + Nitrite (as N) ............................. 0.228 mg/L Al............................................................. 0.091 mg/L K................................................................ 0.36 mg/L Ca ............................................................. 3.04 mg/L Silica (as Si) ................................................ 2.1 mg/L Cl............................................................... 0.96 mg/L Na................................................................ 1.5 mg/L Colour (Hazen units) ............................................. 24 Sulfate (as SO4) ........................................ 3.26 mg/L Dissolved Organic Carbon (DOC) .............. 4.0 mg/L pH....................................................................... 6.81 Dissolved Inorganic Carbon (DIC) .............. 1.7 mg/L Conductivity (25C) .................................28.2 S/cm Mg ............................................................. 0.44 mg/L

Indicative values

Ammonia (as N)...................................... 0.004 mg/L Nitrate (IC, as N)...................................... 0.228 mg/L F.................................................................. 0.4 mg/L Total Kjeldahl Nitrogen.............................. 0.15 mg/L Hardness, total (as CaCO3) ........................ 9.3 mg/L Turbidity (JTU/NTU)........................................... 0.18

500 mL

New NWION-96.3 River water - Major ions and nutrients Certified values

Alkalinity, Total (as CaCO3) ....................... 184 mg/L Nitrate + Nitrite (as N) ................................. 4.3 mg/L Calcium..................................................... 90.6 mg/L pH......................................................................... 8.3 Chloride........................................................ 93 mg/L Potassium ................................................... 4.0 mg/L Dissolved Inorganic Carbon (DIC) ............ 42.7 mg/L Silica (as Si) .............................................. 1.16 mg/L Dissolved Organic Carbon (DOC) ............... 4.9 ml/L Sodium...................................................... 48.6 mg/L Fluoride ..................................................... 0.16 mg/L Conductivity (25C) ..................................860 S/cm Hardness, Total (as CaCO3) ...................... 336 mg/L Sulfate (as SO4) ......................................... 110 mg/L Magnesium ............................................... 25.7 mg/L Colour (Hazen units) ............................................. 16

Indicative values for Ammonia (as N), Boron, Total Kjeldahl Nitrogen (as N)

500 mL

New NWONTARIO-99 Natural lake water - Major ions and nutrients Certified values

Alkalinity, Total (as CaCO3) ...................... 92.7 mg/L Nitrate + Nitrite (as N) ............................... 0.45 mg/L Calcium........................................................ 35 mg/L pH....................................................................... 8.08 Chloride..................................................... 20.7 mg/L Potassium ................................................... 1.5 mg/L Dissolved Inorganic Carbon (DIC) ............ 22.2 mg/L Silica (as Si) .............................................. 0.53 mg/L Dissolved Organic Carbon (DOC) .............. .1.7 ml/L Sodium...................................................... 12.7 mg/L Fluoride ..................................................... 0.63 mg/L Conductivity (25C) ..................................306 S/cm Hardness, Total (as CaCO3) ...................... 124 mg/L Sulfate (as SO4) ........................................ 26.0 mg/L Magnesium ................................................. 8.6 mg/L Colour (Hazen units) ............................................. 16

Indicative values for Ammonia (as N), Boron, Color (Hazen Units), Total Kjeldahl Nitrogen (as N)

500 mL

NWHURON-98 Lake Huron water - Major ions and nutrients Certified values

Alkalinity, Total (as CaCO3) ...................... 79.5 mg/L Nitrate + Nitrite (as N) ............................. 0.248 mg/L Calcium..................................................... 26.1 mg/L pH....................................................................... 8.06 Chloride..................................................... 6.18 mg/L Potassium ................................................. 0.92 mg/L Dissolved Inorganic Carbon (DIC) ............ 19.0 mg/L Silica (as Si) ............................................ 0.501 mg/L Dissolved Organic Carbon (DOC) ............. 1.50 ml/L Sodium...................................................... 3.73 mg/L Fluoride ................................................... 0.085 mg/L Specific Conductance ..............................206 S/cm Hardness, Total (as CaCO3) ..................... 96.4 mg/L Sulfate (as SO4) ........................................ 15.4 mg/L Magnesium ............................................... 7.36 mg/L

Indicative values for Ammonia (as N), Boron, Colour (Hazen units), Total Kjeldahl Nitrogen (as N)

500 mL

Waters


Code Product Unit

NWTROIS-94 Soft, coloured river water - Major ions and nutrients Collected from Trois Rivieres.

Certified Values

Alkalinity, Gran Titn (as CaCO3) .............. 5.02 mg/L Nitrate + Nitrite (as N) ............................. 0.070 mg/L Ammonia (as N)...................................... 0.030 mg/L K................................................................ 0.51 mg/L Ca ............................................................. 2.52 mg/L Silica (as Si) .............................................. 1.98 mg/L Cl .............................................................. 1.74 mg/L Na.............................................................. 2.21 mg/L Colour (Hazen units) ............................................. 36 Sulfate (as SO4) ........................................ 4.76 mg/L Dissolved Organic Carbon (DOC) .............. 1.2 mg/L pH......................................................................... 6.8 Dissolved Inorganic Carbon (DIC) .............. 5.3 mg/L Conductivity (25C) .................................31.9 S/cm Mg........................................................... 0.607 mg/L Total Kjeldal Nitrogen................................ 0.24 mg/L Nitrate (IC, as N) ..................................... 0.070 mg/L

Indicative values

Al............................................................. 0.067 mg/L Hardness, total (as CaCO3) ........................ 9.3 mg/L F.............................................................. 0.043 mg/L Alkalinity, Total (as CaCO3) ................................. 6.2

500 mL

NWHAMILTON-20 Natural water - Major ions and nutrients Collected from Hamilton Harbour.

Certified values

Alkalinity, total (as CaCO3) ........................ 103 mg/L Mg ............................................................ 11.8 mg/L Ca ............................................................. 45.1 mg/L NO3 + NO2 (as N)...................................... 2.45 mg/L Cl .............................................................. 64.6 mg/L K.................................................................. 4.2 mg/L Dissolved Inorganic Carbon (DIC) ............ 24.9 mg/L Silica (as Si) ............................................ 0.095 mg/L Dissolved Organic Carbon (DOC) .............. 2.9 mg/L Na................................................................. 38 mg/L Conductivity (25C).................................. 521 S/cm Sulfate (as SO4) ........................................... 46 mg/L F................................................................ 0.42 mg/L pH ...................................................................... 8.00 Hardness, total (as CaCO3) ....................... 163 mg/L

Indicative values for Ammonia (as N) , B, Colour (units), Total Kjeldahl Nitrogen (as N), Turbidity (JTU/NTU)

500 mL

New NRCORMS-3 River water - Mercury Certified Value for Mercury

Hg ............................... 12.6 pg/g

3 x 50 mL

SPS-SW1 Surface water - Trace metals Certified values

Al................................. 50 ng/mL Cu................................20 ng/mL Pb .............................. 5.0 ng/mL As............................. 10.0 ng/mL Fe ................................20 ng/mL Rb ............................ 10.0 ng/mL B ................................. 50 ng/mL K ................................200 ng/mL S ............................. 2000 ng/mL Ba ............................... 50 ng/mL Mg .............................400 ng/mL Se ............................ 2.00 ng/mL Ca ........................... 2000 ng/mL Mn ............................10.0 ng/mL Si............................. 1000 ng/mL Cd ............................ 0.50 ng/mL Mo ............................10.0 ng/mL Sr ............................. 50.0 ng/mL Co ............................ 2.00 ng/mL Na............................2000 ng/mL Tl.............................. 0.50 ng/mL Cr ............................. 2.00 ng/mL Ni ..............................10.0 ng/mL V .............................. 10.0 ng/mL Cs ............................ 2.00 ng/mL P ................................100 ng/mL Zn................................ 20 ng/mL

Rare earth metals (Sc, Y, Ce, Dy, Er, Eu, Gd, Ho, La, Lu, Nd, Pr, Sm, Tb, Th, Tm, U, Yb) 0.50 ng/mL

6 x 50 mL

SPS-SW2 Surface water - Trace metals Certified values

Al.............................. 250 ng/mL Cu.............................100 ng/mL Pb ............................ 25.0 ng/mL As............................ 50.0 ng/mL Fe .............................100 ng/mL Rb ............................ 50.0 ng/mL B .............................. 250 ng/mL K ..............................1000 ng/mL S ........................... 10000 ng/mL Ba ............................ 250 ng/mL Mg ...........................2000 ng/mL Se ............................ 10.0 ng/mL Ca ........................ 10000 ng/mL Mn ............................50.0 ng/mL Si............................. 5000 ng/mL Cd ........................... 2.50 ng/mL Mo ............................50.0 ng/mL Sr .............................. 250 ng/mL Co ........................... 10.0 ng/mL Na..........................10000 ng/mL V .............................. 50.0 ng/mL Cr ............................ 10.0 ng/mL Ni ..............................50.0 ng/mL Zn.............................. 100 ng/mL Cs ........................... 10.0 ng/mL P ................................500 ng/mL Tl.............................. 2.50 ng/mL

Rare earth metals (Sc, Y, Ce, Dy, Er, Eu, Gd, Ho, La, Lu, Nd, Pr, Sm, Tb, Th, Tm, U, Yb) 2.50 ng/mL

6 x 50 mL

CBE-WJ-03-1 Hancza lake water - Cations in natural lake water (preserved with nitric acid)) Collected from Lake Hancza, Poland. The reference values were obtained in 2002 in the interlaboratory comparison program organised by RefMat Society (Poland) and supported by LGC Promochem.

Reference Values

Ba ............................ 0.018 mg/L K ...............................1.942 mg/L Na ............................ 2.896 mg/L Ca .......................... 37.686 mg/L Mg ............................7.542 mg/L Sr ............................. 0.064 mg/L Fe............................. 0.020 mg/L Mn .............................2.909 g/L Zn............................. 0.050 mg/L

Indicative value for Al

1 x 100 mL

CBE-WJ-03-3 Hancza lake water - Cations in natural lake water (preserved with nitric acid)) 3 x 100 mL

Waters


Code Product Unit

NWION-915 Natural water - Major ions and nutrients Collected from Lake Superior

Certified Values

pH ...................................................................... 7.72 F .............................................................. 0.048 mg/L DIC............................................................ 9.95 mg/L K................................................................ 0.49 mg/L Specific conductance.................................97 S/cm Mg ............................................................... 2.8 mg/L Total alkalinity (as CacO3) ........................ 42.3 mg/L NO3 + NO2 (as N) .................................... 0.343 mg/L Total hardness (as CaCO3 ) ...................... 45.2 mg/L Na.............................................................. 1.35 mg/L Ca ............................................................. 13.4 mg/L SiO2 (as Si)............................................... 1.16 mg/L Cl............................................................... 1.39 mg/L SO4.............................................................. 3.4 mg/L

Indicative values for NH3 (as N), Colour (Hazen units), DOC, Total N (Kjeldahl), Turbidity (NTU/JTU)

500 mL

Sea water LGC6016 Estuarine water - Trace metals

Collected from the Severn Estuary, UK, offshore from a heavily industrialised area near Avonmouth.

Certified Values

Cd .............................. 101 g/kg Mn...............................976 g/kg Pb............................... 196 g/kg Cu .............................. 190 g/kg Ni ................................186 g/kg Indicative values for Ca, K, Mg, Na, Zn

50 mL

BCR-505 Estuarine water - Trace elements The material has been filtered at 0.45 m and acidified with HNO3 to around pH 1.5

Certified values

Cd ......................... 0.80 nmol/kg Ni ...........................24.1 nmol/kg Cu ......................... 29.4 nmol/kg Zn ...........................172 nmol/kg

1 L

BCR-403 Sea water - Trace elements The material has been filtered at 0.45 m and acidified with HNO3 to around pH 1.5.

Certified values

Cd ....................... 0.175 nmol/kg Mo...........................103 nmol/kg Pb........................ 0.117 nmol/kg Cu ........................... 3.9 nmol/kg Ni .............................4.4 nmol/kg Zn.......................... 25.7 nmol/kg

Indicative values for Al, As, V

2 L

BCR-579 Coastal sea water - Mercury The material has been filtered at 0.45 m and acidified with HCl to around pH 1.7

Certified value

Hg ............................. 1.85 ng/kg

1 L

NRCSLEW-3 Estuarine water - Trace elements Collected from the San Francisco Bay, California, USA at a depth of 5 metres

Certified values

As................................ 1.36 g/L Cu................................1.55 g/L Pb............................ 0.0090 g/L Cd ............................. 0.048 g/L Fe ..............................0.568 g/L V.................................. 2.57 g/L Co ............................. 0.042 g/L Mn................................1.61 g/L Zn.............................. 0.201 g/L Cr .............................. 0.183 g/L Ni .................................1.23 g/L Indicative values for Ag, Mo, U

500 mL

IAEA-381 Irish sea water - Radioactive isotopes Certified values 241Am.......................0.017 Bq/kg 237Np..................... 0,0089 Bq/kg 240Pu......................0.0067 Bq/kg 137Cs..........................0.49 Bq/kg 238Pu ..................... 0.0032 Bq/kg 239Pu + 240Pu ..........0.0135 240Pu 40K .............................11.4 Bq/kg 239Pu ..................... 0.0081 Bq/kg 90Sr..........................0.141 Bq/kg

Indicative values for 3H, 125Sb, 234U, 235U, 236U, 238U, 241Pu, 244Cm

5000 mL

NRCNASS-5 Open ocean sea water - Trace metals Collected in the North Atlantic at a depth of 10 m

Certified Values

As................................ 1.27 g/L Cu..............................0.297 g/L Ni............................... 0.253 g/L Cd ............................. 0.023 g/L Fe ..............................0.207 g/L Pb.............................. 0.008 g/L Co ............................. 0.011 g/L Mn..............................0.919 g/L Zn.............................. 0.102 g/L Cr .............................. 0.110 g/L Mo..................................9.6 g/L Indicative values for Se, U, V

500 mL

NRCCASS-4 Nearshore seawater - Trace metals Collected from Halifax harbour, Canada at a deph of 12 m. It has a salinity of 30.7

Certified Values

As................................ 1.11 g/L Cu..............................0.592 g/L Ni............................... 0.314 g/L Cd ............................. 0.026 g/L Fe ..............................0.713 g/L Pb............................ 0.0098 g/L Co ............................. 0.026 g/L Mn................................2.78 g/L V.................................. 1.18 g/L Cr .............................. 0.144 g/L Mo................................8.78 g/L Zn.............................. 0.381 g/L Indicative value for U

500 mL

Waters


Code Product Unit

New NRCMOOS-1 Sea water - Nutrients Certified values

Orthophosphate ...........................1.56 0.07 mol/L Nitrite........................................... 3.06 0.15 mol/L Silicate ...........................................26.0 1.0 mol/L Nitrite and Nitrate .......................... 23.7 0.9 mol/L

2 x 50 mL

Spiked/fortified water NWTM-15 Fortified water - Trace elements

Ag ............................... 12.1 g/L Cr.................................17.2 g/L Pb ............................... 11.8 g/L Al................................. 21.7 g/L Cu................................18.3 g/L Sb ............................... 15.6 g/L As................................ 14.6 g/L Fe ................................25.0 g/L Se ............................... 14.5 g/L Ba ............................... 13.3 g/L Li..................................14.5 g/L Sr ................................ 70.8 g/L Be ............................... 15.5 g/L Mn ...............................18.4 g/L Tl................................. 17.7 g/L Cd ............................... 13.2 g/L Mo ...............................13.7 g/L U ................................. 14.5 g/L Co ............................... 15.1 g/L Ni, ................................18.1 g/L V ................................. 12.4 g/L Indicative values for Bi, Sn, Zn

500 mL

New NWTM-23.3 Fortified water - Trace elements Prepared from Lake Ontario water, filtered, diluted and preserved with 0.2% nitric acid

Certified values

Al.................................... 96 g/L Fe ...................................15 g/L Sn ................................. 2.7 g/L As.................................. 7.6 g/L Li....................................2.5 g/L Sr ................................ 70.6 g/L Ba ............................... 14.3 g/L Mn .................................8.7 g/L Ti................................... 3.2 g/L Be ................................. 1.5 g/L Mo .................................4.4 g/L Tl................................... 3.8 g/L Cd ................................. 2.5 g/L Ni, ..................................5.4 g/L U ................................... 5.1 g/L Co ................................. 6.7 g/L Pb..................................3.2 g/L V ................................... 2.1 g/L Cr .................................. 6.6 g/L Sb..................................2.5 g/L Cu ................................. 9.1 g/L Se..................................4.2 g/L Indicative values for Ag, Bi

500 mL

NWTM-25.2 Fortified water - Trace elements Al.................................... 51 g/L Fe ................................17.6 g/L Se ................................. 4.9 g/L As.................................. 7.1 g/L Li....................................3.9 g/L Sr ................................. 141 g/L Ba ................................. 5.9 g/L Mn ...............................14.7 g/L Tl................................... 6.5 g/L Be ................................. 2.8 g/L Mo ..................................7.3g/L U ................................... 6.2 g/L Cd ................................. 8.7 g/L Ni ....................................10 g/L V ................................. 10.8 g/L Co ............................... 13.2 g/L Pb................................15.4 g/L Cu ............................... 12.0 g/L Sb..................................1.9 g/L Indicative values for Ag, Bi, Cr, Sn, Zn

500 mL

New NWTM-26.3 Fortified water - Trace elements Al.................................... 69 g/L Fe ...................................21 g/L Sr ................................... 96 g/L As.................................. 7.9 g/L Li....................................6.6 g/L Ti................................... 6.0 g/L Ba .................................. 25 g/L Mn ...............................17.0 g/L Tl................................... 5.2 g/L Be ................................. 3.4 g/L Mo .................................7.6 g/L U ................................... 7.5 g/L Cd ................................. 7.1 g/L Ni .................................10.2 g/L V ................................. 12.1 g/L Co ................................. 8.1 g/L Pb................................10.5 g/L Sn ................................. 5.9 g/L Cr ................................ 12.3 g/L Sb..................................2.7 g/L Cu ............................... 13.4 g/L Se..................................5.6 g/L Indicative values for Ag, Bi, Zn

500 mL

NWTM-27.2 Fortified water - Trace elements Prepared from Lake Ontario water, filtered, diluted and preserved with 0.2% nitric acid

Certified values

Al................................. 14.5 g/L Cu..................................4.6 g/L Sb ................................. 1.9 g/L As.................................. 2.4 g/L Fe ................................11.4 g/L Se ................................. 1.6 g/L Ba ................................. 5.1 g/L Li....................................3.9 g/L Sr ................................ 54.2 g/L Be ................................. 1.4 g/L Mn .................................2.6 g/L Tl................................... 1.8 g/L Cd ................................. 1.2 g/L Mo .................................2.4 g/L U ................................... 2.0 g/L Co ................................. 2.3 g/L Ni ...................................2.6 g/L V ................................... 2.4 g/L Cr .................................. 1.8 g/L Pb..................................3.2 g/L Indicative values for Ag, Ca, Bi, K, Mg, Na, Sn, Zn

500 mL

NWTM-28.2 Fortified water - Trace elements Prepared from Lake Ontario water, filtered, diluted and preserved with 0.2% nitric acid

Certified values

Ag ................................. 3.3 g/L Cr...................................4.7 g/L Pb ................................. 4.1 g/L Al.................................... 47 g/L Cu..................................6.2 g/L Sb ................................. 3.1 g/L As.................................. 5.8 g/L Fe ...................................17 g/L Se .................................. 36 g/L Ba ............................... 15.7 g/L Li....................................3.6 g/L Sr ................................ 50.8 g/L Be ................................. 2.5 g/L Mn .................................7.1 g/L Tl................................... 3.7 g/L Cd ................................. 1.3 g/L Mo .................................4.1 g/L U ................................... 5.7 g/L Co ................................. 3.6 g/L Ni .................................11.1 g/L V ................................... 2.5 g/L Indicative values for Ca, Bi, K, Mg, Na, Zn

500 mL

Waters


Code Product Unit

New NWTMDA-54.4 Fortified water - Trace elements Prepared from Lake Ontario water, filtered, diluted and preserved with 0.2% nitric acid

Certified values

Ag................................ 13.6 g/L Cu.................................443 g/L Sn................................ 48.2 g/L Al.................................. 394 g/L Fe .................................382 g/L Sr ................................. 589 g/L As................................ 43.6 g/L Li..................................25.7 g/L Ti ................................. 32.5 g/L B.................................. 60.6 g/L Mn.................................275 g/L Tl ................................. 27.7 g/L Ba................................. 327 g/L Mo.................................295 g/L U ................................. 57.3 g/L Be................................ 17.2 g/L Ni ..................................337 g/L V................................... 340 g/L Cd ................................ 158 g/L Pb .................................514 g/L Zn................................. 537 g/L Co ................................ 309 g/L Sb ................................25.7 g/L Cr ................................. 438 g/L Se ................................33.8 g/L Indicative values for Bi, Ga and Rb

500 mL

NWTM-DWS Fortified water - Trace elements Ag................................ 14.4 g/L Cu.................................178 g/L Se................................ 30.2 g/L Al.................................. 155 g/L Fe .................................343 g/L Sr ................................. 326 g/L As................................ 72.5 g/L Li..................................20.3 g/L Tl ................................... 8.4 g/L Ba................................. 149 g/L Mn................................86.2 g/L U .................................. 135 g/L Be................................ 11.8 g/L Mo................................68.6 g/L V.................................. 45.5 g/L Cd ............................... 14.2 g/L Ni .................................78.9 g/L Zn................................. 379 g/L Co ............................... 65.2 g/L Pb ................................34.2 g/L Cr ................................ 94.8 g/L Sb ................................16.7 g/L Indicative values for Ca, K, Mg, Na, Sn

500 mL

NWTMDA-62 Fortified water - Trace elements Ag................................ 11.3 g/L Cr.................................92.7 g/L Pb................................ 99.3 g/L Al.................................... 92 g/L Cu.................................106 g/L Sb................................... 57 g/L As................................ 51.7 g/L Fe .................................120 g/L Se................................ 50.4 g/L Ba................................. 115 g/L Li.....................................57 g/L Sr ................................. 118 g/L Be................................... 54 g/L Mn.................................103 g/L Tl ................................. 51.3 g/L Cd ............................... 90.2 g/L Mo................................97.1 g/L U ................................. 52.4 g/L Co ............................... 99.7 g/L Ni .................................97.7 g/L V................................... 108 g/L Indicative values for Bi, Ca, K, Mg, Na, Sn, Zn

500 mL

New NWTMDA-64 Fortified water - Trace elements Al.................................. 265 g/L Cr..................................294 g/L Pb................................. 297 g/L As................................. 150 g/L Cu.................................290 g/L Sb................................. 125 g/L Ba................................. 302 g/L Fe .................................319 g/L Se................................. 151 g/L Be................................. 150 g/L Li...................................153 g/L Sr ................................. 267 g/L Bi.................................. 142 g/L Mn.................................299 g/L Tl .................................. 150 g/L Cd ................................ 251 g/L Mo.................................278 g/L U .................................. 138 g/L Co ................................ 270 g/L Ni ..................................262 g/L V................................... 272 g/L Indicative values for Sn and Zn

500 mL

NWION-92 Fortified distilled water - Major ions and nutrients A calibration standard in distilled water

Certified Values

Alkalinity, Total (as CaCO3) ........................ 1.5 mg/L Total hardness (as CaCO3)...................... 147.9 mg/l Ca ............................................................. 42.8 mg/L K.............................................................. 0.884 mg/L Cl............................................................. 105.5 mg/L Silica (as Si) ...........................................

Waters


Code Product Unit

NCS ZC76310 Water - Arsenic Certified value

As............................ 1000 g/mL

20 mL

NCS ZC76311 Water - Cadmium Certified value

Cd ........................... 1000 g/mL

20 mL

NCS ZC76312 Water - Cobalt Certified value

Co ........................... 1000 g/mL

20 mL

NCS ZC76313 Water - Chromium Certified value

Cr ............................ 1000 g/mL

20 mL

NCS ZC76314 Water - Copper Certified value

Cu ........................... 1000 g/mL

20 mL

NCS ZC76315 Water - Iron Certified value

Fe............................ 1000 g/mL

20 mL

New NCS ZC76303 Water - Mercury Certified value

Hg ............................... 10 g/mL

100 mL

NCS ZC76316 Water - Mercury Certified value

Hg ........................... 1000 g/mL

20 mL

NCS ZC76317 Water - Nickel Certified value

Ni ............................ 1000 g/mL

20 mL

NCS ZC76318 Water - Lead Certified value

Pb ........................... 1000 g/mL

20 mL

NCS ZC76319 Water - Zinc Certified value

Zn............................ 1000 g/mL

20 mL

Miscellaneous LGC6175 Landfill leachate - Trace elements

Certified values

B .................................. 8.9 mg/L K ..................................385 mg/L Na ............................... 860 mg/L Ca ............................... 148 mg/L Mg ...............................221 mg/L Ni ............................... 0.09 mg/L Fe............................... 1.05 mg/L Mn ..............................0.33 mg/L Zn............................... 0.28 mg/L

50 mL

LGC6176 Landfill leachate - Anions Certified values

Cl ................................ 887 mg/L NH4................................62 mg/L TOC .............................. 74 mg/L COD............................ 215 mg/L SO4..............................482 mg/L

50 mL

LGC6177 Landfill leachate - Trace elements Reference material collected from a landfill site in Loughborough, Leicestershire, UK

Assessed values

B .................................. 9.8 mg/L K ..................................780 mg/L Ni ............................... 0.21 mg/L Ca .............................. 74.8 mg/L Mg ..............................73.5 mg/L P ................................ 11.5 mg/L Cr ............................... 0.18 mg/L Mn ..............................0.14 mg/L Fe................................. 3.8 mg/L Na..............................1750 mg/L

5 x 50 mL

Waters


Code Product Unit

New NWARD-01 Acid rock drainage - Trace elements NWARD-01 is an aqueous reference material for acid rock drainage. The sample was collected through a mine waste pile at the decommissioned Cluff Lake Mine in Saskatchewan, Canada. This waste rock was approximately 0.67% sulfur by weight. The waters were highly oxidised and much of the iron present precipitated prior to discharge. The sample has been filtered for particulates through a glass fibre filter and acidified to 2% HNO3. Reference values are derived from one collaborative study involving 14 laboratories with expertise in the analysis of acid rock drainage.

Certified values

Al................................. 440 mg/L Cr..............................0.023 mg/L Ni................................. 103 mg/L As............................... 0.02 mg/L Cu.................................0.7 mg/L Pb............................. 0.004 mg/L B................................... 6.7 mg/L Fe ....................................1 mg/L Se............................. 0.086 mg/L Ba............................. 0.012 mg/L K ...................................6.6 mg/L Sr ................................. 3.3 mg/L Be............................... 0.11 mg/L Li....................................16 mg/L U ................................... 73 mg/L Ca ............................... 380 mg/L Mg..............................1700 mg/L V............................... 0.002 mg/L Cd ............................ 0.005 mg/L Mn..................................35 mg/L Zn................................. 3.3 mg/L Co ................................. 13 mg/L Na................................210 mg/L

Indicative values for Ag, Bi, Mo, Sb, Sn, Ti, Tl

500 mL

BCR-713 Waste water effluent - Trace elements Certified values

As.................................. 9.7 g/L Fe ...............................0.40 mg/L Se.................................. 5.6 g/L Cd ................................. 5.1 g/L Mn................................43.4 g/L Zn............................... 0.22 mg/L Cr ................................ 21.9 g/L Ni ....................................30 g/L Cu .................................. 69 g/L Pb ...................................47 g/L

100 mL

BCR-714 Waste water influent - Trace elements Certified values

As................................ 18.3 g/L Fe ...............................1.03 mg/L Se.................................. 9.8 g/L Cd ............................... 19.9 g/L Mn.................................103 g/L Zn............................... 1.00 mg/L Cr ................................. 123 g/L Ni ..................................108 g/L Cu ................................ 309 g/L Pb .................................145 g/L

100 mL

BCR-715 Waste water industrial effluent - Trace elements Certified values

As................................ 29 4 g/L Fe ...............................3.00 mg/L Se................................ 29 4 g/L Cd ............................... 40 5 g/L Mn.................................248 g/L Zn................................. 4.0 mg/L Cr ............................... 1.00 mg/L Ni ................................1.20 mg/L Cu .............................. 0.90 mg/L Pb ...............................0.49 mg/L

100 mL

SPS-WW1 Waste water - Trace metals Certified values

Al............................. 2000 ng/mL Cu..............................400 ng/mL Pb........................... 100.0 ng/mL As........................... 100.0 ng/mL Fe ............................1000 ng/mL V............................. 100.0 ng/mL Cd ............................ 20.0 ng/mL Mn..............................400 ng/mL Zn.............................. 600 ng/mL Co ............................ 60.0 ng/mL Ni ..........

analytical reference materials, standards and high purity ...photo/f831030270.pdf · analytical...

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