PMID- 21790601 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20120227 LR - 20111101 IS - 1556-4029 (Electronic) IS - 0022-1198 (Linking) VI - 56 IP - 6 DP - 2011 Nov TI - Development of microwave-assisted extraction procedure for organic impurity profiling of seized 3,4-methylenedioxymethamphetamine (MDMA). PG - 1483-92 LID - 10.1111/j.1556-4029.2011.01848.x [doi] AB - Organic impurity profiling of seized 3,4-methylenedioxymethamphetamine (MDMA) tablets aims to link tablets to common production sources. Conventionally, organic impurities are extracted from tablets using a liquid-liquid extraction (LLE) procedure prior to analysis by gas chromatography-mass spectrometry (GC-MS). In this research, the development of an alternative microwave-assisted extraction/headspace solid-phase microextraction (MAE/HS-SPME) procedure is described. The optimal procedure used phosphate buffer (1 M, pH 8), with an HS-SPME extraction temperature of 70 degrees C for 40 min, using a divinylbenzene/Carboxen/polydimethylsiloxane (DVB/CAR/PDMS) fiber. Impurities were extracted from seized MDMA exhibits using the MAE/HS-SPME procedure, as well as HS-SPME alone, and a conventional LLE procedure. The HS-SPME procedure was deemed to be the most practical because of the affordability and need for less analyst involvement. Although the LLE was limited in the number of impurities extracted, the procedure is still useful for the extraction of less volatile impurities that are not extracted by HS-SPME. CI - (c) 2011 American Academy of Forensic Sciences. FAU - Giebink, Patricia J AU - Giebink PJ AD - Forensic Science Program, School of Criminal Justice, Michigan State University, East Lansing, MI 48824, USA. FAU - Smith, Ruth Waddell AU - Smith RW LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110725 PL - United States TA - J Forensic Sci JT - Journal of forensic sciences JID - 0375370 EDAT- 2011/07/28 06:00 MHDA- 2011/07/28 06:01 CRDT- 2011/07/28 06:00 PHST- 2011/07/28 06:00 [entrez] PHST- 2011/07/28 06:00 [pubmed] PHST- 2011/07/28 06:01 [medline] AID - 10.1111/j.1556-4029.2011.01848.x [doi] PST - ppublish SO - J Forensic Sci. 2011 Nov;56(6):1483-92. doi: 10.1111/j.1556-4029.2011.01848.x. Epub 2011 Jul 25.