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Evaporative analyser as a mass detector in the size-exclusion chromatography of coal extracts

✍ Scribed by Keith D. Bartle; Norman Taylor; Michael J. Mulligan; Derek G. Mills; Christopher Gibson

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
499 KB
Volume
62
Category
Article
ISSN
0016-2361

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✦ Synopsis

The applicability of the evaporative analyser in the size-exclusion chromatography (SEC) of coal derivatives has been explored. The detector, in which the intensity is measured for the light scattered from the finely divided solute particles resulting from evaporation of droplets of chromatographic eluate, is mass responsive, sensitive, and linear for both narrow and gross coal-extract fractions. For molecular masses above 300 the mass response is almost uniform, and there are considerable advantages over the detectors commonly used in SEC. Application to lower molecular mass coal materials is limited by the evaporation of solute along with solvent in the detector.

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