Removing and identifying drug contamination in the analysis of human hair

被引：86

作者：

Cairns, T ^{[1
]}

Hill, V ^{[1
]}

Schaffer, M ^{[1
]}

Thistle, W ^{[1
]}

机构：

[1] Psychemed Corp, Culver City, CA 90230 USA

来源：

FORENSIC SCIENCE INTERNATIONAL | 2004年 / 145卷 / 2-3期

关键词：

drug contamination; wash criterion;

D O I：

10.1016/j.forsciint.2004.04.024

中图分类号：

DF [法律]; D9 [法律]; R [医药、卫生];

学科分类号：

0301 ; 10 ;

摘要：

The procedure used in this laboratory for removing and identifying contamination of hair specimens with drugs is demonstrated by its application to hair contaminated by various experimental models. The models include soaking; coating with drug followed by sweat conditions for 6 h; and soaking in a very high concentration of cocaine followed by storage and multiple shampoo treatments. A multi-part wash procedure along with a wash criterion is applied to all samples containing drug above the cutoff. The failure of the wash criterion is a signal that the sample may be positive due to contamination rather than use, and in the absence of other over-riding evidence, the sample would be considered to be negative for drug use. This Wash Criterion has also been tested with hair from subjects demonstrated to be drug users by one or more drug-positive urines; in these studies, all hair samples from demonstrated users passed the Wash Criterion test. (C) 2004 Elsevier Ireland Ltd. All rights reserved.

引用

页码：97 / 108

页数：12

共 12 条

[1] SAMPLE PREPARATION TECHNIQUES [J].