WIT Press

Sampling And Analysis Of Volatile Organic Compounds (VOC) Relevant For The Formation Of Photochemical Oxidants

Price

Free (open access)

Paper DOI

10.2495/AIR950242

Volume

10

Pages

10

Published

1995

Size

733 kb

Author(s)

D. Kotzias, M. Duane & F. Murtaif

Abstract

The paper presents a strategy for sampling and analysis of VOC, i.e. sampling sites, period and frequency, sampling systems and the various analytical methods as well as the preparation of VOCs standard mixtures. Moreover, in this work we report on a new system for the analysis of VOC in air. The device consists of a gas chromato- graph equipped with a sampling loop (50 to 200 ml) and a liquid nitrogen cooled microtrap, placed in the chromatographic oven, connected via a valve with the sampling loop. The system allows 24- hour sampling and analysis of a large number of VOC (up to 25 individual hydrocarbons) ranging from C% to Cg. Thanks to the special geometry of the trap a minimum consumption of

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