PMID- 18182261 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20080507 LR - 20080414 IS - 1872-6283 (Electronic) IS - 0379-0738 (Linking) VI - 177 IP - 2-3 DP - 2008 May 20 TI - Drug intelligence based on organic impurities in illicit MA samples. PG - 153-61 LID - 10.1016/j.forsciint.2007.11.013 [doi] AB - One major objective of the European project "Collaborative Harmonisation of Methods for Profiling of Amphetamine Type Stimulants" (CHAMP), funded by the sixth framework programme of the European Commission, consisted of the harmonisation of a gas chromatography/mass spectrometry (GC/MS) method for the analysis of organic impurities found in illicit methamphetamine (MA) samples in a drug intelligence perspective. Statistical analysis provided a selection of pertinent variables among the 43 organic impurities identified in the chromatograms. As for the 3,4-MethyleneDioxyMethAmphetamine (MDMA) study, correlation coefficients were used as a discrimination tool between populations of linked samples (from the same seizure) and unlinked samples (from different seizures). It was also shown that correlation measurements based on Pearson and cosine functions applied to the data pre-treated by normalisation to the sum of peak responses followed by the square root provided excellent discrimination between the two populations. The organic impurities profiling method was proved to be relevant for the characterization of samples from different seizures and their synthesis route patterns. FAU - Dujourdy, L AU - Dujourdy L AD - Laboratoire Police Scientifique de Lyon, 31 Avenue Franklin Roosevelt, 69134 Ecully, France. Laurence.Dujourdy@interieur.gouv.fr FAU - Dufey, V AU - Dufey V FAU - Besacier, F AU - Besacier F FAU - Miano, N AU - Miano N FAU - Marquis, R AU - Marquis R FAU - Lock, E AU - Lock E FAU - Aalberg, L AU - Aalberg L FAU - Dieckmann, S AU - Dieckmann S FAU - Zrcek, F AU - Zrcek F FAU - Bozenko, J S Jr AU - Bozenko JS Jr LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080107 PL - Ireland TA - Forensic Sci Int JT - Forensic science international JID - 7902034 EDAT- 2008/01/10 09:00 MHDA- 2008/01/10 09:01 CRDT- 2008/01/10 09:00 PHST- 2007/06/15 00:00 [received] PHST- 2007/11/21 00:00 [revised] PHST- 2007/11/23 00:00 [accepted] PHST- 2008/01/10 09:00 [pubmed] PHST- 2008/01/10 09:01 [medline] PHST- 2008/01/10 09:00 [entrez] AID - S0379-0738(07)00829-8 [pii] AID - 10.1016/j.forsciint.2007.11.013 [doi] PST - ppublish SO - Forensic Sci Int. 2008 May 20;177(2-3):153-61. doi: 10.1016/j.forsciint.2007.11.013. Epub 2008 Jan 7.