Simultaneous Doping Analysis of Main Urinary Metabolites of Anabolic Steroids in Horse by Ion-trap Gas Chromatography-Tandem Mass Spectrometry

The use of anabolic steroids in racehorses is strictly regulated. We have developed a method for the simultaneous analysis of 11 anabolic steroids: fluoxymesterone, 17α-methyltestosterone, mestanolone, methandienone, methandriol, oxymetholone, boldenone, furazabol, methenolone, nandrolone, and stano...

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Bibliographic Details
Published in:Analytical Sciences 2008/09/10, Vol.24(9), pp.1199-1204
Main Authors: YAMADA, Masayuki, ARAMAKI, Sugako, KUROSAWA, Masahiko, KIJIMA-SUDA, Isao, SAITO, Koichi, NAKAZAWA, Hiroyuki
Format: Article
Language:English
Subjects:
Anabolic Agents - metabolism
Anabolic Agents - urine
Analytical Chemistry
Animals
Chemistry
Chromatography, Gas
Doping in Sports
Female
Horses - metabolism
Horses - urine
Male
Reproducibility of Results
Steroids - metabolism
Steroids - urine
Tandem Mass Spectrometry
Time Factors
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Summary:The use of anabolic steroids in racehorses is strictly regulated. We have developed a method for the simultaneous analysis of 11 anabolic steroids: fluoxymesterone, 17α-methyltestosterone, mestanolone, methandienone, methandriol, oxymetholone, boldenone, furazabol, methenolone, nandrolone, and stanozolol, for possible application to a doping test in racehorses. We selected 15 kinds of target substances for a doping test from the main metabolites of these anabolic steroids, and established a method for simultaneous analysis. Urine was hydrolyzed and subjected to solid-phase extraction. Then, the residue from the extracts was derivatized by trimethylsilylation. The derivatized samples were subjected to ion-trap gas chromatography-tandem mass spectrometry, and their mass chromatograms and product ion spectra were obtained. The limit of detection of the target substances was 5 - 50 ng/mL, and the mean recovery and coefficient of variation were 71.3 - 104.8% and 1.1 - 9.5%, respectively.
ISSN:0910-6340
1348-2246
DOI:10.2116/analsci.24.1199