Authors: Tirumalai, Padma S.; Shakleya, Diaa M.; Gannett, Peter M.; Callery, Patrick S.; Bland, Tina M.; Tracy, Timothy S.

Source: Journal of Analytical Toxicology, Volume 29, Number 1, January/February 2005 , pp. 48-53(6)

Publisher: Preston Publications

Abstract:

Embalming is common, and yet it can create problems for the forensic scientist if a drug has been the cause of death and if this drug is also reactive toward the embalming fluid. Previous studies have focused on the amines such as nortriptyline, desipramine, and fenfluramine. In the presence of formalin, a typical component of embalming fluid, these compounds can be rapidly converted to their methylated derivatives amitriptyline, imipramine, and N-methyl-fenfluramine, respectively. We have begun a larger project designed to determine the reactivity and reactions of a wide range of drugs with formalin and have extended it to amphetamines. We report here our results from methamphetamine, which is converted into its N-methyl derivative in the presence of formalin. The rate of conversion is dependent upon pH and formalin concentration with the greatest conversion occurring under basic conditions and the highest formalin concentration. Up to 100% conversion in 24 h was observed under certain conditions. When studied in human tissue exposed to methamphetamine and treated with formalin, again, conversion to N-methyl-methamphetamine was readily apparent as early as 30 min after exposure to formalin. Finally, we note that the reactions of methamphetamine with formalin studied here are probably general and should be considered when performing postmortem/postembalming forensic analysis.

Document Type: Research article

Affiliations: 1: Department of Basic Pharmaceutical Sciences, School of Pharmacy, West Virginia University, Morgantown, West Virginia

Publication date: 2005-01-01

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• The Journal of Analytical Toxicology (JAT), established in 1977 and published 9 times a year, is the international source covering a broad range of clinical, forensic, and industrial laboratory topics regarding the isolation, identification, and quantitation of potentially toxic substances.

  With an emphasis on practical application, JAT articles provide improved and novel techniques for use in clinical, forensic, workplace, sports testing (doping), and other toxicology laboratories. Articles describe newly developed methods in immunoassay testing, gas chromatography, liquid chromatography, mass spectrometry, atomic absorption spectrometry, solid and liquid phase extraction techniques, and other analytical approaches. Worldwide readership includes toxicologists, pathologists, chemists, clinicians, researchers, and educators working in medical examiner and law enforcement laboratories, hospitals, university and independent analytical laboratories, as well as the drug manufacturing industry.

  Each year in October, we publish a special issue from the Society of Forensic Toxicologists.

  JAT, as determined by ISI Citation Index, is one of the two most referenced international journals in forensic science.

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