Editorial on “Beyond dispersive liquid–liquid microextraction” by Mei-I Leong, Ming-Ren Fuh and Shang-Da Huang

Download Editorial on “Beyond dispersive liquid–liquid microextraction” by Mei-I Leong, Ming-Ren Fuh and Shang-Da Huang

Post on 21-Dec-2016




1 download

Embed Size (px)


<ul><li><p>Journal of Chromatography A, 1335 (2014) 1</p><p>Contents lists available at ScienceDirect</p><p>Journal of Chromatography A</p><p>j o ur na l ho me page: www.elsev ier .com/ locate /chroma</p><p>Editorial</p><p>Editorial on Beyond dispersive liquidliquid microextraction byMei-I Leong, Ming-Ren Fuh and Shang-Da Huang</p><p>Just like solid-phase microextraction (entailing a thin layer ofsorbent coated on a short length of a fused silica ber) (late 1980s),and liquid-phase microextraction (in which the original approachinvolved just a drop of extractant solvent) (mid-1990s) before it,dispersive liquidliquid microextraction (DLLME) is characterizedby neat simplicity in its operation and application. The way DLLMEis conducted is delightfully minimalistic: mix a water-misciblesolvent and water-immiscible solvent in a syringe and inject themixture forcefully into a water sample, and that is about it [1].Extraction takes place almost instantaneously amidst the forma-tion of an emulsion (cloudy solution). The extract is collected aftercentrifugatiand the resfor centrifufacilitate thMuch of theeliminate ththan-waterhave been the centrifuing the DLLfollowing E</p><p>DOI of orig</p><p>and Ming-Ren Fuh and Shang-Da Huang (Taiwan), attempts tochronicle the developments in DLLME in recent years, after the rstpaper [1] established a very fertile area of research in sample prepa-ration. The title Beyond dispersive liquidliquid microextractionwas suggested by the editor, to signify the extension of the develop-ment of DLLME, beyond its basic implementation. To enable routineapplication of the procedure to real-world problems, more opera-tional convenience and some form of automation would be needed.We hope readers will nd that the authors of the review have beenable to capture the essence of taking DLLME development forwardto its near- and mid-term future.</p><p>nce</p><p>ezaeeromat</p><p>ore, </p><p>http://dx.doi.o0021-9673/ inal article: http://dx.doi.org/10.1016/j.chroma.2014.02.021.</p><p>rg/10.1016/j.chroma.2014.02.0222014 Elsevier B.V. All rights reserved.on to break up the mixture into two phases (the extractt). This is where a slight complication arises: the needgation; and the use of a denser-than-water solvent toe practicality of extract collection after centrifugation.</p><p> focus on DLLME subsequently has been to attempt toe need for centrifugation and obviate the use of denser-</p><p> (usually the undesirable chlorinated) solvents. Therenumerous approaches to this end. The elimination ofgation step is important if one is desirous of automat-ME process on a commercial autosampling system. Theditors Choice review by Mei-I Leong (Macau, China),</p><p>Refere</p><p>[1] M. RJ. Ch</p><p>Singap, Y. Assadi, M.R.M. Hosseini, E. Aghaee, F. Ahmadi, S. Berijani,ogr. A 1116 (2006) 1.</p><p>Hian Kee LeeSingaporeE-mail address: chmleehk@nus.edu.sg</p><p>Available online 13 February 2014</p></li></ul>