UV–Vis Molecular Absorption Spectrometry

Chapter 13

Measurement of Transmittance and

Absorbance

Absorption Cell

Effect of Polychromatic Radiation

Instrument Noise – Effect on Transmittance and

Absorbance

Molecular Absorption MeasurementsComponents

Output from a Deuterium Lamp

Typical Sourses of LightDeuterium Lamp Tungsten Lamp

Blackbody Radiation Curves

Spectral Bandwidth

Spectral Bandwidth

Effect of Slit Width

Slit Width and Resolution

Resolution

Interference Filter

Transmission Characteristics of Transmission Filter

Absorption vs. Interference Filter

Prism Monochromator

Grating Monochromator

Echellette Grating

Dispersion for Three Types of Monochromator

Combination Absorption Filter

Photon Transducers

Phototube

Photomultiplier

Single-Beam Instrument

Double-Beam Instrumentbeams separated in space

Double-Beam Instrumentbeams separated in time

Single- and Double-Beam Photometer

Spectronic 20

Double-Beam Spectrophotometer

UV-Vis

Double-Beam Recording Spectrophotometer

UV-Vis

Double-Dispersing Spectrophotometer

Multichannel Spectrophotometer

grating and photodiode array transducer

Multichannel Diode Array Spectrometer

End