title: Studies on anabolic steroids. I. Integrated methodological approach to the gas chromatographic-mass spectrometric analysis of anabolic steroid metabolites in urine.
abstract: The analytical and methodological imperatives for large-scale and routine gas chromatographic-mass spectrometric screening of anabolic steroid urinary metabolites are described. Several aspects of their isolation, enzymatic hydrolysis, derivatization and metabolism in humans are discussed. Gas chromatographic-mass spectrometric data illustrating artifacts arising from enzymatic hydrolysis of 3 beta-ol-5-en steroids, and describing new metabolites of boldenone, methanedienone and stanozolol, as well as the conversion of norethisterone into 19-nortestosterone metabolites through de-ethylation at C-17, are presented. The analytical approach developed for gas chromatographic-mass spectrometric screening of anabolic steroids is based on the sequential selection-ion monitoring of specific and discrete ion groups characteristic to the steroids of interest under high-resolution chromatographic conditions. The major analytical and methodological requirements necessary to provide irrefutable evidence, in the case where the presence of a synthetic anabolic steroid or a testosterone to epitestosterone ratio higher than 6:1 is suspected in a given urine specimen, are also discussed.
authors.affiliation: Institut National de la Recherche Scientifique (INRS-Santé), Université du Québec, Pointe-Claire, Canada.
authors.forename: R
authors.initials: R
authors.lastname: Massé
authors.forename: C
authors.initials: C
authors.lastname: Ayotte
authors.forename: R
authors.initials: R
authors.lastname: Dugal
mesh_terms: D045930:Anabolic Agents / Q000378:metabolism / Q000652:urine*; D055598:Chemical Phenomena; D002621:Chemistry; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D006868:Hydrolysis; D012015:Reference Standards; D013739:Testosterone / Q000652:urine
chemical_list: D045930:Anabolic Agents; D013739:Testosterone