PMID- 18093416 OWN - NLM STAT- MEDLINE DCOM- 20080131 LR - 20191210 IS - 0146-4760 (Print) IS - 0146-4760 (Linking) VI - 31 IP - 9 DP - 2007 Nov-Dec TI - Determination of illicit drugs and their metabolites in human urine by liquid chromatography tandem mass spectrometry including relative ion intensity criterion. PG - 573-80 AB - A method, using 0.5 mL of urine, was developed for the simultaneous determination of ecgonine methyl ester, benzoylecgonine, morphine, codeine, 6-acetylmorphine, amphetamine, methamphetamine, 3,4-methylenedioxyamphetamine (MDA), 3,4-methylenedioxymethamphetamine (MDMA), methadone, 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine (EDDP), and d-lysergic acid diethylamide (LSD). The analysis was performed by liquid chromatography with tandem mass spectrometry, after solid-phase extraction in the presence of their deuterated analogues. Reversed-phase separation on an Atlantis dC18 column was achieved in 12.5 min, under gradient conditions. The method was fully validated, including linearity (1-2000 microg/L for ecgonine methyl ester, benzoylecgonine, 6-acetylmorphine, methamphetamine, MDMA, and EDDP; 2-2000 microg/L for morphine, codeine, MDA, and methadone; 2-1000 microg/L for amphetamine, and 0.2-100 microg/L for LSD; r(2)>0.99); recovery (>65%), within-day and between-day precision, and accuracy (CV and MRE<15%); limit of detection (0.1 microg/L for LSD, 0.5 microg/L for ecgonine methyl ester, benzoylecgonine, methamphetamine, MDMA, 6-monoacetylmorphine, and EDDP, and 1 microg/L for amphetamine, MDA, morphine, and methadone); quantitation (lowest level of the calibration curve); relative ion intensities, freeze-and-thaw stability, and matrix effect. The procedure showed to be sensitive and specific, and was applied to real cases and quality control samples from a quality control program. FAU - Concheiro, Marta AU - Concheiro M AD - University of Santiago de Compostela, Forensic Toxicology Service, Spain. FAU - De Castro, Ana AU - De Castro A FAU - Quintela, Oscar AU - Quintela O FAU - Cruz, Angelines AU - Cruz A FAU - Lopez-Rivadulla, Manuel AU - Lopez-Rivadulla M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Validation Study PL - England TA - J Anal Toxicol JT - Journal of analytical toxicology JID - 7705085 RN - 0 (Amphetamines) RN - 0 (Illicit Drugs) RN - 0 (Pyrrolidines) RN - 5353I8I6YS (benzoylecgonine) RN - 76I7G6D29C (Morphine) RN - 8NA5SWF92O (Lysergic Acid Diethylamide) RN - I5Y540LHVR (Cocaine) RN - UC6VBE7V1Z (Methadone) RN - Y35FJB3QBJ (ecgonine methyl ester) RN - Z3LC48U94I (2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine) SB - IM MH - Amphetamines/urine MH - Chromatography, Liquid MH - Cocaine/analogs & derivatives/urine MH - Humans MH - Illicit Drugs/*urine MH - Lysergic Acid Diethylamide/urine MH - Methadone/urine MH - Morphine/urine MH - Pyrrolidines/urine MH - Tandem Mass Spectrometry EDAT- 2007/12/21 09:00 MHDA- 2008/02/01 09:00 CRDT- 2007/12/21 09:00 PHST- 2007/12/21 09:00 [pubmed] PHST- 2008/02/01 09:00 [medline] PHST- 2007/12/21 09:00 [entrez] AID - 10.1093/jat/31.9.573 [doi] PST - ppublish SO - J Anal Toxicol. 2007 Nov-Dec;31(9):573-80. doi: 10.1093/jat/31.9.573.