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Marihuana Contact Test, Evaluation and Development
A colorimetric swab test for detecting human contact with marihuana was evaluated. The test was found to be capable of detecting only 83% of marihuana smokers immediately after smoking and was also demonstrated to be subject to a wide range of possible interferences. An alternative test was developed using thin-layer chromatography as the method for detecting marihuana constituents from a skin swab. This test detected 86% of the smokers immediately after smoking and was not demonstrated to be subject to any interferences. Recommendations are presented on practical uses for this test. /Abstract from report summary page/
The Los Angeles Police Department (LAPD) has developed a rating procedures for use in detecting drug-impaired drivers. The purpose of the rating proce...
Technology was developed for determining delta sup 9-tetrahydrocannabinol (I) and its major metabolite 11-nor-delta sup 9-tetrahydrocannabinol-9-carbo...
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