Journal Published Online: 01 July 1982
Volume 27, Issue 3

Analysis of Chemical Protection Sprays by Gas Chromatography/mass Spectroscopy

CODEN: JFSCAS

Abstract

Gas chromatography/mass spectroscopy (GC/MS) is a rapid and sensitive technique for the identification of the active ingredients of commercially available chemical protection sprays. Chloroacetophenone (CN) and o-chlorobenzalmalononitrile (CS) are easily extracted from the liquid sprays with methanol. A basic aqueous extraction procedure is needed for sprays containing capsaicin. Residues can be further purified by preparative thin-layer chromatography. Clothing can also be analyzed for the presence of tear gas residue. The compound CN can be identified by analyzing a heated vapor headspace sample of the cloth by GC/MS. A hexane wash of the cloth is needed for identification of CS and capsaicin.

Author Information

Nowicki, J
Bureau of Scientific Services, Illinois Department of Law Enforcement, Joliet
Pages: 6
Price: $25.00
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Stock #: JFS12178J
ISSN: 0022-1198
DOI: 10.1520/JFS12178J