Analysis of a challenging subset of World Anti-Doping Agency-banned steroids and antiestrogens by LC-MS-MS

J Anal Toxicol. 2007 Apr;31(3):125-31. doi: 10.1093/jat/31.3.125.

Abstract

A qualitative liquid chromatography-tandem mass spectrometry method for the analysis of 22 sporting federation-banned anabolic agents (or their metabolite markers) and anti-estrogens in urine that are refractory to analysis by gas chromatography-mass spectrometry is presented. In addition, a quantitative method built around World Anti-Doping Agency (WADA) guidelines for the confirmatory analysis of 19-norandrosterone, the primary metabolite of nandrolone with a WADA-specified minimum required performance limit of 1 ng/mL, is included. Hydrolysis of glucuronide conjugates, liquid-liquid extraction, no clean-up derivatization with Girard's Reagent P, and analysis by quadrupole-time-of-flight mass spectrometry provide sensitivity and selectivity well beyond that required by the WADA.

Publication types

  • Validation Study

MeSH terms

  • Anabolic Agents / urine*
  • Chromatography, High Pressure Liquid*
  • Doping in Sports*
  • Estranes / urine*
  • Estrogen Receptor Modulators / urine*
  • Guidelines as Topic
  • Humans
  • International Agencies
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Spectrometry, Mass, Electrospray Ionization*
  • Substance Abuse Detection / methods*
  • Tandem Mass Spectrometry*

Substances

  • Anabolic Agents
  • Estranes
  • Estrogen Receptor Modulators
  • 19-norandrosterone