By Andreas Maehly, Lars Strömberg (auth.)

ISBN-10: 3642680615

ISBN-13: 9783642680618

ISBN-10: 3642680631

ISBN-13: 9783642680632

In fresh years, a couple of textbooks on forensic technological know-how were released, so much of them directed to 2 teams, viz. the scholars of forensic technology, and the shoppers as a way to say, (prosecutors, cops, judges, safeguard lawyers). during this ebook, whereas overlaying primary suggestions, we attempt to head a bit extra and deal with additionally energetic employees within the box of forensic chemistry. this is often almost always accomplished by means of rather nu­ merous literature references. we are hoping that they might support the forensic chemist in penetrating additional into the themes lined during this quantity. on the finish of such a lot chapters there are examples of exact circumstances dealt with on the Swedish nationwide Laboratory of Forensic technological know-how. lots of those situations might, doubtless, were investigated in better element, yet they mirror the compromises usually worthy for reaching an inexpensive turnover. a few components of the booklet are particularly strongly coloured via the non-public critiques of the authors. We felt that those passages will supply a bit extra lifestyles to the textual content than in different treatises of a extra goal, yet almost certainly duller personality. The authors welcome all optimistic feedback with a purpose to support to enhance the ebook, should still there be a moment edition.

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Herbal cannabis often shows severe heterogeneity. The chemical composition of cannabis resin is strongly dominated by the cannabinoids THC, CBD (cannabidiol), CBN (cannabinol) and their carboxylic Fig. 14. Gas chromatogram of cannabis resin extract. The typical peak clusters are: sesquiterpenes (7-10 minutes), sesquiterpene alcohols (10-12 minutes), main cannabinoids (21-27 minutes) and "heavy constituents" (29-38 minutes). The broken line indicates the temperature program. From Stromberg [17] acids.

III. Gas-liquid Chromatography. 1. Chromatogr. 90, 19 (1974) 11) 1. M. Moore, M. Klein: Identification of 03-Monoacetylmorphine in Illicit Heroin by Using Gas Chromatography-electron-capture Detection and Mass Spectrometry. 1. 154, 76 (1978) 12) M. : Analysis of Marijuana Samples from Different Origins by High-Resolution GasLiquid Chromatography for Forensic Application. Anal. Chern. 48, 24 (1976) 13) 1. L. : Crime Laboratory Proficiency Testing Research Program. Washington: National Institute of Law Enforcement and Criminal 1ustice 1978 14) D.

In the comparative analysis of some single-component drugs, experimental results and case work experience have strongly indicated that batches from different sources can be individualized. In such cases, the non-probabilistic approach is well justified since only the similarity problem needs to be considered. 5. Cannabis 35 5. Cannabis Three types of drug preparations from the hemp plant Cannabis sativa L. occur on the illicit market, i. e. the herbal type (marihuana, grass, pot), the resin type (hashish, charas) and cannabis extract.

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Chemical Criminalistics by Andreas Maehly, Lars Strömberg (auth.)

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