PMID- 1955829 OWN - NLM STAT- MEDLINE DCOM- 19920102 LR - 20131121 IS - 0022-1198 (Print) IS - 0022-1198 (Linking) VI - 36 IP - 5 DP - 1991 Sep TI - Simultaneous analysis of amphetamine, methamphetamine, and 3, 4-methylenedioxymethamphetamine (MDMA) in urine samples by solid-phase extraction, derivatization, and gas chromatography/mass spectrometry. PG - 1331-41 AB - A rapid and effective solid-phase extraction procedure using Bond Elute Certify bonded silica sorbent cartridges was adopted to extract amphetamine, methamphetamine, and 3,4-methylenedioxymethamphetamine (MDMA or Ecstasy) from urine samples. The extract was derivatized with trichloroacetic anhydride prior to gas chromatography/mass spectrometry (GC/MS) analysis with selected ion monitoring of the following ions: 190, 91, 188; 204, 91, 202; 162, 135, 202; 194, 123; and 211, 209 for the derivatized amphetamine, methamphetamine, MDMA, d5-amphetamine, and d9-methamphetamine, respectively. The first of the ions listed for each compound was used for quantitation. The compound d5-amphetamine was used as the internal standard for amphetamine, and d9-methamphetamine was used for methamphetamine and MDMA. Results showed a higher than 65% recovery and a reproducibility with less than a 5% coefficient of variation. When a sample size of 2 mL was used, the lowest detectable concentration was about 50 ng/mL, and a near-perfect fit can be obtained (within the 250 to 4000-ng/mL concentration range studied) using a second-order polynomial model. FAU - Gan, B K AU - Gan BK AD - Department of Criminal Justice, University of Alabama, Birmingham. FAU - Baugh, D AU - Baugh D FAU - Liu, R H AU - Liu RH FAU - Walia, A S AU - Walia AS LA - eng PT - Journal Article PL - United States TA - J Forensic Sci JT - Journal of forensic sciences JID - 0375370 RN - 44RAL3456C (Methamphetamine) RN - 4764-17-4 (3,4-Methylenedioxyamphetamine) RN - CK833KGX7E (Amphetamine) SB - IM MH - 3,4-Methylenedioxyamphetamine/*urine MH - Amphetamine/*urine MH - Calibration MH - Gas Chromatography-Mass Spectrometry MH - Humans MH - Methamphetamine/*urine MH - Predictive Value of Tests MH - Reproducibility of Results EDAT- 1991/09/01 00:00 MHDA- 1991/09/01 00:01 CRDT- 1991/09/01 00:00 PHST- 1991/09/01 00:00 [pubmed] PHST- 1991/09/01 00:01 [medline] PHST- 1991/09/01 00:00 [entrez] PST - ppublish SO - J Forensic Sci. 1991 Sep;36(5):1331-41.