期刊
SCIENCE & JUSTICE
卷 55, 期 3, 页码 176-180出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.scijus.2014.12.001
关键词
Forensic science; Ignitable liquids; Fire debris analysis; Substrate interferences; Passive adsorption; Adsorption tubes
The analysis of samples for traces of ignitable liquids is most often connected with suspected arson cases. In such cases, samples taken from the point of origin of the fire are analyzed for the presence of ignitable liquids. However, sometimes, in cases not connected with arson, there is a need to detect and identify traces of ignitable liquids. Three examples of such cases are given in this paper. Aqueous samples (polluted water, juice and blood) were analyzed using a procedure routinely used in the analyses of fire debris. The procedure consists of passive adsorption of volatile organic compounds on Tenax, followed by thermal desorption and chromatographic analysis. Results showed that analysis of such untypical samples may be connected with unusual matrix effects, not frequently encountered in fire debris samples. (C) 2014 The Chartered Society of Forensic Sciences. Published by Elsevier Ireland Ltd. All rights reserved.
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