Table 3

IRMS results of doping control urine samples. Data representing an adverse analytical finding are illustrated in bold

δ13C values of target analytesδ13C values of endogenous reference compounds
SampleTest typeA (‰)E (‰)5α-Adiol (‰)EpiT (‰)Pregnanediol (‰)Pregnanetriol (‰)11-OH-A (‰)11-Keto-E (‰)
1aOOC−19.9−21.1**−20.4−20.8−20.6*
1bIC−22.4−26.6*−21.0−21.8−20.7*
2IC−25.3−27.1−27.6−26.2−20.0−21.0−20.1*
3IC−22.5−26.4−27.9−28.0−21.4*−20.3*
4IC−23.1−26.0−27.1−20.7−21.6−20.5−21.1
5IC−23.8−26.5−27.9−27.1−20.6*−20.1*
  • * Signal too low (<1nA).

  • Peak interference detected by gas chromatography/mass spectrometry.

  • EpiT, epitestosterone; IC, in competition; OOC, out-of-competition.