PMID- 20471020 OWN - NLM STAT- MEDLINE DCOM- 20100817 LR - 20191210 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1217 IP - 26 DP - 2010 Jun 25 TI - Qualitative drug analysis of hair extracts by comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry. PG - 4402-10 LID - 10.1016/j.chroma.2010.04.020 [doi] AB - A technique using comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry (GCxGC/TOFMS) is applied to a qualitative analysis of three sample extracts from hair suspected of containing various drug compounds. The samples were also subjected to a quantitative target analysis for codeine, morphine, 6-monoacetylmorphine (6-MAM), amphetamine, methamphetamine, methylenedioxyamphetamine (MDA), methylenedioxymethylamphetamine (MDMA), methadone, and benzylpiperazine (BZP) by liquid chromatography-tandem mass spectrometry (LC-MS/MS). GCxGC/TOFMS provided a non-specific procedure that identified various drugs, metabolites, and impurities not included in the target analysis. They included cocaine, diazepam, and methaqualone (quaalude). Comprehensive GCxGC separation was achieved using twin-stage cryo-modulation to focus eluant from a DB-5 ms (5% phenyl) to a BPX50 (50% phenyl) GC column. The TOF mass spectrometer provided unit mass resolution in the mass range m/z 5-1000 and rapid spectral acquisition (< or = 500spectra/s). Clean mass spectra of the individual components were obtained using mass spectral deconvolution software. The 'unknown' components were identified by comparison with mass spectra stored in a library database. CI - Copyright 2010 Elsevier B.V. All rights reserved. FAU - Guthery, Bill AU - Guthery B AD - Planetary and Space Sciences Research Institute, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UK. w.guthery@open.ac.uk FAU - Bassindale, Tom AU - Bassindale T FAU - Bassindale, Alan AU - Bassindale A FAU - Pillinger, Colin T AU - Pillinger CT FAU - Morgan, Geraint H AU - Morgan GH LA - eng PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100424 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Pharmaceutical Preparations) SB - IM MH - Gas Chromatography-Mass Spectrometry/*methods MH - Hair/*chemistry MH - Humans MH - Pharmaceutical Preparations/*analysis EDAT- 2010/05/18 06:00 MHDA- 2010/08/18 06:00 CRDT- 2010/05/18 06:00 PHST- 2010/01/15 00:00 [received] PHST- 2010/03/19 00:00 [revised] PHST- 2010/04/09 00:00 [accepted] PHST- 2010/05/18 06:00 [entrez] PHST- 2010/05/18 06:00 [pubmed] PHST- 2010/08/18 06:00 [medline] AID - S0021-9673(10)00488-7 [pii] AID - 10.1016/j.chroma.2010.04.020 [doi] PST - ppublish SO - J Chromatogr A. 2010 Jun 25;1217(26):4402-10. doi: 10.1016/j.chroma.2010.04.020. Epub 2010 Apr 24.