title: Rapid analysis of 3,4-methylenedioxymethamphetamine: a comparison of nonaqueous capillary electrophoresis/fluorescence detection with GC/MS.
abstract: Because of the increasing use of 3,4-methylenedioxymethamphetamine (3,4-MDMA), a rapid and sensitive analytical technique is required for its detection and determination. Using nonaqueous capillary electrophoresis/fluorescence spectroscopy (NACE/FS) detection, it is possible to determine this drug at the level 0.5 ppm without any pre-treatment in less than 5 min. After liquid-liquid extraction, the sample can be condensed and a detection limit of 3,4-MDMA in urine of 50 ppb (S/N = 3) can be achieved. The precision of the method was evaluated by measuring the repeatability and intermediate precision of migration time and the corrected peak height by comparison with a 3,4-MDMA-D5 internal standard. With the conventional GC/MS method, it is necessary to derivatize the 3,4-MDMA before injection and the GC migration time also is in excess of 20 min. Therefore, NACE/FS represents a good complementary method to GC/MS for use in forensic analysis.
authors.affiliation: Department of Chemistry, National Taiwan Normal University, 88 Sec. 4, Tingchow Road, Taipei.
authors.forename: Ching
authors.initials: C
authors.lastname: Fang
authors.forename: Yu-Lin
authors.initials: YL
authors.lastname: Chung
authors.forename: Ju-Tsung
authors.initials: JT
authors.lastname: Liu
authors.forename: Cheng-Huang
authors.initials: CH
authors.lastname: Lin
mesh_terms: D019075:Electrophoresis, Capillary / Q000379:methods*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D006213:Hallucinogens / Q000032:analysis* / Q000652:urine; D006801:Humans; D018817:N-Methyl-3,4-methylenedioxyamphetamine / Q000032:analysis* / Q000652:urine; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013997:Time Factors
chemical_list: D006213:Hallucinogens; D018817:N-Methyl-3,4-methylenedioxyamphetamine