Determination of the prevalence of anabolic steroids, stimulants, and selected drugs subject to doping controls among elite sport students using analytical chemistry

von Thevis, Mario (Autor), ... Sauer, Michael (Autor), Geyer, Hans (Autor), Sigmund, Gerd (Autor), Mareck, Ute (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Journal of sports sciences, 26 (2008), 10, S. 1059-1065, Lit.

Nutritional supplements cross-contaminated and faked with doping substances

von Geyer, Hans (Autor), ... Parr, Maria Kristina (Autor), Köhler, Karsten (Autor), Mareck, Ute (Autor), Schänzer, Wilhelm (Autor), Thevis, Mario (Autor)
Erschienen in Journal of mass spectrometry : JMS, 43 (2008), 7 (Sports doping explored), S. 892-902, Lit.

Determination of 13C/12C ratios of endogenous urinary steroids : method validation, reference population and application to doping control purposes

von Piper, Thomas (Autor), ... Mareck, Ute (Autor), Geyer, Hans (Autor), Flenker, Ulrich (Autor), Thevis, Mario (Autor), Platen, Petra (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Rapid communications in mass spectrometry, 22 (2008), 14, S. 2161-2175, Lit.