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Development of a harmonised method for the profiling of amphetamines: IV. Optimisation of sample preparation
Swedish National Laboratory of Forensic Science.
National Bureau of Investigation, Finland.
University of Lausanne.
Netherlands Forensic Institute.
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2007 (English)In: Forensic Science International, ISSN 0379-0738, E-ISSN 1872-6283, Vol. 169, no 1, 64-76 p.Article in journal (Refereed) Published
Abstract [en]

The suitability of liquid–liquid extraction (LLE) and solid-phase extraction (SPE) for the preparation of impurity extracts intended for gas chromatographic profiling analyses of amphetamine were evaluated. Both techniques were optimised with respect to the extraction of selected target compounds by use of full factorial designs in which the variables affecting the performance were evaluated. Test samples consisted of amphetamine synthesised by the Leuckart reaction, by reductive amination of benzyl methyl ketone and by the nitrostyrene route. The performance of LLE and SPE were comparable in terms of repeatability and recovery of the target compounds. LLE was considered the better choice for the present harmonised amphetamine profiling method due to the lack of information on the long-term stability of SPE columns.

Place, publisher, year, edition, pages
Elsevier , 2007. Vol. 169, no 1, 64-76 p.
Keyword [en]
Amphetamine; Impurities; Profiling; Optimisation; SPE; LLE; GC-FID; GC–MS
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-72289DOI: 10.1016/j.forsciint.2006.10.017ISI: 247113600008OAI: diva2:459014
Available from: 2011-11-24 Created: 2011-11-24 Last updated: 2011-12-01

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Dahlén, Johan
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