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NCJ Number: 162860 Find in a Library
Title: Experimental Investigations on Hair Fibers As Diffusion Bridges and Opiates As Solutes in Solution
Journal: Journal of Forensic Sciences  Volume:41  Issue:1  Dated:(January 1996)  Pages:117-120
Author(s): G Skopp; L Potsch; R Aderjan
Date Published: 1996
Page Count: 4
Type: Report (Technical)
Format: Article
Language: English
Country: United States of America
Annotation: This study examines hair fibers for the presence of drugs and evaluates the usefulness of this type of analysis.
Abstract: In this hair analysis, the authors attempted to discern if there are pathways in hair fiber by which small organic molecules like morphine, codeine, and dihydrocodeine leave or enter the fiber. Diffusion experiments were performed using natural and predamaged clipped hair fibers as diffusion bridges and aqueous solutions of morphine, codeine, and dihydrocodeine. The test series were conducted at ambient temperature and at high humidity. After 312 or 372 hours the middle segments of the strands were clipped, washed, and analyzed by GC/MS. Only when virgin hair samples were used did the solutes pass along the fiber at full length resulting in a positive immunological finding at the end of the diffusion bridge. Most of the washing fluids were positive for opiates. All centerpieces had a high opiate content. The opiate concentration in damaged hair was significantly higher. The authors concluded that the morphology and the physicochemical properties of the hair fiber are indispensable for a valid interpretation of the results of drug analysis in hair. Figures, tables, references
Main Term(s): Controlled Substances
Index Term(s): Drug analysis; Drug testing; Forensic medicine; Forensic sciences; Hair and fiber analysis; Opioids; Science and Technology; Scientific techniques; Trace evidence
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