Analysis of trace amount of bank dye and lachrymators from exploding bank devices by solid-phase microextraction and gas chromatography-mass spectrometry

Journal of Chromatographic Science
Eshwar JagerdeoMarc Lebeau

Abstract

Solid-phase microextraction (SPME) is a fast, solvent-free alternative to conventional sample preparation techniques. This technique involves exposing a fused silica fiber that has been coated with a stationary phase to an aqueous solution or its headspace to selectively extract compounds from their matrix. The fiber is then removed, and the analytes are thermally desorbed in the injector of a gas chromatograph. By sampling from the headspace above sample matrices, SPME can be used to extract target analytes from very complex matrices. In this study, SPME in the headspace is used in developing a method for the dye 1-methylaminoanthraquinone (MAAQ) and two lachrymators: orthochlorobenzalmalononitrile (CS) (tear gas) and 2-chloroacetophenone (CN) (tear gas). The focus is to develop a robust method to minimize sample preparation and to reduce matrix interferences encountered by other extraction techniques. In developing the method, several fibers are studied for their affinity for the compounds of interest. Although this method is developed for qualitative analysis, the extraction time and temperature profile are thoroughly investigated to provide the optimal conditions. The use of a salt solution is evaluated to increase the part...Continue Reading

Citations

Jan 20, 2016·Forensic Science International : Synergy·Deleon Nascimento CorreaPedro Henrique Vendramini
Jul 21, 2010·Forensic Science International : Synergy·Allison M Pfaff, Robert R Steiner
Sep 20, 2015·Science & Justice : Journal of the Forensic Science Society·Eduardo Morgado SchmidtDeleon Nascimento Correa
Feb 3, 2015·Rapid Communications in Mass Spectrometry : RCM·Eshwar JagerdeoLouis J Reda
Nov 15, 2006·Journal of Mass Spectrometry : JMS

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