✦ LIBER ✦

Analysis of chemical warfare agents in soil samples by off-line supercritical fluid extraction and capillary gas chromatography

✍ Scribed by Marja-Leena Kuitunen; Kari Hartonen; Marja-Liisa Riekkola

Publisher: John Wiley and Sons
Year: 1991
Tongue: English
Weight: 474 KB
Volume: 3
Category: Article
ISSN: 1040-7685
DOI: 10.1002/mcs.1220030605

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✦ Synopsis

Abstract

Nerve agents and two other chemical warfare agents were extracted from spiked soil with supercritical CO~2~. Supercritical fluid extraction (SFE) was used as an off‐line technique. The extracts were analyzed with a two‐channel capillary gas chromatograph, equipped with an autosampler and flame ionization and nitrogen‐phosphorus detectors. Compounds were identified and quantified automatically with the help of retention index monitoring (RIM). Recoveries were equal to or better than those obtained with solvent extraction by sonication.

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