Comparison of the Efficiencies of Carbon Sorbents for the Preconcentration of Highly Volatile Organic Substances from Wet Gas Atmospheres for the Subsequent Gas-Chromatographic Determination

The efficiencies of various carbon sorbents in the preconcentration of volatile organic substances from a stream of humid air for their subsequent gas-chromatographic determination are compared. A hybrid procedure for rapid analysis including the sorption preconcentration of analytes on a selected c...

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Bibliographic Details
Published in:Journal of analytical chemistry (New York, N.Y.) N.Y.), 2019-09, Vol.74 (9), p.877-882
Main Authors: Rodinkov, O. V., Vagner, E. A., Bugaichenko, A. S., Moskvin, L. N.
Format: Article
Language:English
Subjects:
Alcohols
Analytical Chemistry
Carbon
Chemistry
Chemistry and Materials Science
Chromatography
Flame ionization detectors
Ion migration
Ketones
Sorbents
VOCs
Volatile organic compounds
Water vapor
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Summary:The efficiencies of various carbon sorbents in the preconcentration of volatile organic substances from a stream of humid air for their subsequent gas-chromatographic determination are compared. A hybrid procedure for rapid analysis including the sorption preconcentration of analytes on a selected carbon–fluoroplastic composite sorbent and their one-stage thermal desorption in the injector of a chromatograph with a capillary column and a flame-ionization detector is proposed. This procedure makes it possible to determine lower alcohols and ketones in air saturated with water vapor for 5–10 min with determination limits at a level of several μg/m 3 .
ISSN:1061-9348
1608-3199
DOI:10.1134/S1061934819090089