PMID- 18070626 OWN - NLM STAT- MEDLINE DCOM- 20080422 LR - 20191210 IS - 0021-9673 (Print) IS - 0021-9673 (Linking) VI - 1178 IP - 1-2 DP - 2008 Jan 18 TI - Supported liquid-liquid extraction of the active ingredient (3,4-methylenedioxymethylamphetamine) from ecstasy tablets for isotopic analysis. PG - 1-8 AB - A method was developed for the isolation of 3,4-methylenedioxymethylamphetamine (MDMA) and other active ingredients from illicit ecstasy tablets. The method employed supported liquid extraction (SLE) with cartridges containing a modified form of diatomaceous earth. The method developed was simple and robust and the extract could be analysed directly, by GC-MS, to identify ingredients and reduced in volume for isotope ratio MS analysis of both delta(13)C and delta(15)N. The technique was shown to be highly reproducible, independent of the tablet matrix and considerably faster than existing liquid-liquid extraction methods. Crucially, no significant isotopic fractionation was observed as a result of the extraction process. FAU - de Korompay, Alanna AU - de Korompay A AD - Centre for Forensic Science, Department of Pure and Applied Chemistry, University of Strathclyde, Royal College, 204 George Street, Glasgow G1 1XW, UK. FAU - Hill, Jenny C AU - Hill JC FAU - Carter, James F AU - Carter JF FAU - NicDaeid, Niamh AU - NicDaeid N FAU - Sleeman, Richard AU - Sleeman R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20071122 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Hallucinogens) RN - 0 (Illicit Drugs) RN - 0 (Isotopes) RN - 4764-17-4 (3,4-Methylenedioxyamphetamine) RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) SB - IM MH - 3,4-Methylenedioxyamphetamine/analysis/*isolation & purification MH - Gas Chromatography-Mass Spectrometry/methods MH - Hallucinogens/*chemistry MH - Illicit Drugs/*chemistry MH - Isotopes/*analysis MH - N-Methyl-3,4-methylenedioxyamphetamine/*chemistry MH - Reproducibility of Results EDAT- 2007/12/12 09:00 MHDA- 2008/04/23 09:00 CRDT- 2007/12/12 09:00 PHST- 2007/10/04 00:00 [received] PHST- 2007/11/06 00:00 [revised] PHST- 2007/11/09 00:00 [accepted] PHST- 2007/12/12 09:00 [pubmed] PHST- 2008/04/23 09:00 [medline] PHST- 2007/12/12 09:00 [entrez] AID - S0021-9673(07)01958-9 [pii] AID - 10.1016/j.chroma.2007.11.054 [doi] PST - ppublish SO - J Chromatogr A. 2008 Jan 18;1178(1-2):1-8. doi: 10.1016/j.chroma.2007.11.054. Epub 2007 Nov 22.