ISSN: 0022-1198
CODEN: JFSCA
Published Online: 1 October 1982
Page Count: 10

The Identification of Capsaicinoids in Tear-Gas Spray
Beveridge, AD
Chemist, Royal Canadian Mounted Police Crime Detection Laboratory, B.C.

Fung, T
Chemist, Royal Canadian Mounted Police Crime Detection Laboratory, B.C.

Jeffery, W
Chemist, Royal Canadian Mounted Police Crime Detection Laboratory, B.C.

(Received 11 January 1982; accepted 23 February 1982)

Abstract

“Natural” capsaicin has been identified in “Halt!” sprays by thin-layer chromatography (TLC), high performance liquid chromatography (HPLC), infrared spectrophotometry (IR), and gas chromatography/mass spectrometry (GC/MS). Individual capsaicinoids have been identified as capsaicin, dihydrocapsaicin, and nordihydrocapsaicin. The recommended analytical procedure for small samples is HPLC followed by GC/MS. The alternative procedure of solvent extraction and preparation TLC followed by IR is recommended for large samples.

Keywords:
toxicology, tear gases, chemical analysis

Paper ID: JFS12197J
DOI: 10.1520/JFS12197J
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