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J Chromatogr A

Title:		Analysis of synthetic canine training aids by comprehensive two-dimensional gas chromatography-time of flight mass spectrometry
Author(s):		Stadler S; Stefanuto PH; Byer JD; Brokl M; Forbes S; Focant JF;
Address:		"Faculty of Science, University of Ontario Institute of Technology, 2000 Simcoe St N., Oshawa, Ontario L1H 7K4, Canada"
Journal Title:		J Chromatogr A
Year:		2012
Volume:		20120410
Issue:
Page Number:		202 - 206
DOI:		10.1016/j.chroma.2012.04.001
ISSN/ISBN:		1873-3778 (Electronic) 0021-9673 (Linking)
Abstract:		"Cadaver dogs are trained on a variety of materials, including artificial or pseudo scents. The chemical components of commercially available pseudo scents are not known, so their accuracy as a decomposition odour mimic and their effectiveness as a canine training aid have not been evaluated. Two pseudo scents that are commercially available and used for training cadaver dogs were analysed using comprehensive two-dimensional gas chromatography-time of flight mass spectrometry (GCxGC-TOFMS). The two formulations were determined to be simplistic in their composition, compared to real cadaveric volatile organic compound (VOC) mixtures, with only a few major components. The enhanced GCxGC-TOFMS peak capacity was nevertheless useful to discriminate less intense peaks from large overloaded peaks. The availability of both dimension retention times combined with the peak finding and deconvolution algorithm, enabled the chemical characterization of the two formulations. Additionally, high resolution (HR) TOFMS was used to extract molecular formulae and confirm identities of analytes. The seven compounds identified by this work have not been reported previously as volatile products of decomposition, indicating that these pseudo scents are not to be considered as an accurate representation of cadaveric decomposition odour. Further research on the olfaction of scent detection canines and the chemical composition of their target odourants needs to be conducted to develop improved canine training aids"
Keywords:		Alkanes/analysis Animals Cadaverine/analysis/chemistry Dogs Forensic Sciences/*instrumentation Gas Chromatography-Mass Spectrometry/*methods Odorants/*analysis Putrescine/analysis/chemistry Pyrrolidinones/analysis/chemistry Volatile Organic Compounds/*ana;
Notes:		"MedlineStadler, Sonja Stefanuto, Pierre-Hugues Byer, Jonathan D Brokl, Michal Forbes, Shari Focant, Jean-Francois eng Netherlands 2012/05/05 J Chromatogr A. 2012 Sep 14; 1255:202-6. doi: 10.1016/j.chroma.2012.04.001. Epub 2012 Apr 10"