Mario Thevis

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

Thomas Piper, Ute Mareck, Hans Geyer et al. · Rapid Communications in Mass Spectrometry · 2008 · 164 citations

Sensitive determination of prohibited drugs in dried blood spots (DBS) for doping controls by means of a benchtop quadrupole/Orbitrap mass spectrometer

Andreas Thomas, Hans Geyer, Wilhelm Schänzer et al. · Analytical and Bioanalytical Chemistry · 2012 · 153 citations

Chemistry, Prohibited Drugs, Dried Blood Spots +16

Screening for unknown synthetic steroids in human urine by liquid chromatography‐tandem mass spectrometry

Mario Thevis, Hans Geyer, Ute Mareck et al. · Journal of Mass Spectrometry · 2005 · 130 citations

Screening for the synthetic cannabinoid JWH‐018 and its major metabolites in human doping controls

Ines Möller, Annette Wintermeyer, Katja Mercer‐Chalmers‐Bender et al. · Drug Testing and Analysis · 2010 · 127 citations

Mass spectrometric identification and characterization of a new long‐term metabolite of metandienone in human urine

Wilhelm Schänzer, Hans Geyer, Gregor Fußhöller et al. · Rapid Communications in Mass Spectrometry · 2006 · 126 citations