期刊
FORENSIC SCIENCE INTERNATIONAL
卷 153, 期 2-3, 页码 222-226出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.forsciint.2004.10.025
关键词
drug-facilitated sexual assault; alprazolam; hair; LC-MS/MS
The use of a drug to modify a person's behaviour for criminal gain is not a recent phenomenon. However, the recent increase in reports of drug-facilitated crimes (sexual assault, robbery) has caused alarm by the general public. Among the drugs that can be used, alprazolam (Xanax), an anxiolytic benzodiazepine, has been seldom observed. To document two cases involving this drug, we have developed an approach based on hair testing by LC-MS/MS. After pH 8.4 buffer incubation and extraction with methylene chloride/diethyl ether (80/20, v/v), hair extracts were separated on a XTerra MS C18 column using a gradient of acetonitrile and formate buffer. Alprazolam and diazepam-d(5), used as internal standard, were detected by electospray tandem mass spectrometry. In the first criminal case, alprazolam tested positive in two consecutive 2 cm hair segments at 4.9 and 2.4 pg/mg, from a 12-year-old girl, assaulted by her father who had sedated her three or four times. In the other case, alprazolam was detected in four consecutive 1 cm hair segments at 3.1-0.4 pg/mg, obtained from an adolescent who had been forced to prostitute herself. (c) 2004 Elsevier Ireland Ltd. All rights reserved.
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