Citation

Frere B, Bernier G, Cottin F, Dalmas A, Arpino P. Actual. Chim. 2010; (342-43): 96-101.

Copyright

(Copyright © 2010, Société Chimique de France)

DOI

unavailable

PMID

unavailable

Abstract

Analysis of tear gases traces from self-defence devices In certain types of criminal investigation, it is sometimes necessary to search for traces of lachrymatory substances, such as those found in self-defence devices readily available in many retail outlets. The presence, or absence, of such substances may be important evidence and, as such, may have a significant impact on the progress of the investigation. Recently developed chromatographic methods combined with mass spectrometry using different modes of ionisation, including electron impact (El), atmospheric pressure chemical ionisation (APCI) and tandem mass spectrometry analysers (MS/MS), are effective for detecting trace levels of lachrymatory molecules, including 2-chlorobenzylidene-malonitrile (CS), capsaicin and its analogues that have been synthesized or are present in oleoresin Capsicum extracts.