Selective Gas Chromatographic Detection of Vapor-Phase Organics in Ambient Air

Document Type

Conference Proceeding

Publication Date

1-1-1980

Abstract

High-resolution capillary-column gas chromatography (GC) efficiently separates the many organic compounds that exist in ambient air. However, the identification of these compounds by retention times alone is difficult. The response ratios of sample components on several different types of GC detectors can be used to identify selected peaks more positively. Electron capture (ECD), photoionization (PID), and flame ionization (FID) detectors have been evaluated in this study. Samples split between an ECD and FID are readily analyzed for such electron-capturing species as carbon tetrachloride and tetrachloroethylene. Replicate samples are run on a PID for identification of peaks due to aromatic compounds and other unsaturated materials. This system of three detectors gives sufficient information to confirm the identity of the compounds that have been chosen for quantitation.

Identifier

84960656684 (Scopus)

ISBN

[9780803106048]

Publication Title

ASTM Special Technical Publication

External Full Text Location

https://doi.org/10.1520/STP27562S

ISSN

00660558

First Page

70

Last Page

79

Volume

STP 721

Fund Ref

U.S. Environmental Protection Agency

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