M
Mario Thevis
Researcher at German Sport University Cologne
Publications - 512
Citations - 13310
Mario Thevis is an academic researcher from German Sport University Cologne. The author has contributed to research in topics: Mass spectrometry & Metabolite. The author has an hindex of 53, co-authored 476 publications receiving 11753 citations. Previous affiliations of Mario Thevis include Saarland University & University of California, Los Angeles.
Papers
More filters
Journal ArticleDOI
Simplifying and expanding analytical capabilities for various classes of doping agents by means of direct urine injection high performance liquid chromatography high resolution/high accuracy mass spectrometry.
Christian Görgens,Sven Guddat,Andreas Thomas,Philipp Wachsmuth,Anne-Katrin Orlovius,Gerd Sigmund,Mario Thevis,Wilhelm Schänzer +7 more
TL;DR: A novel multi-target approach based on liquid chromatography and high resolution/high accuracy mass spectrometry is presented to screen for more than 200 analytes of various classes of doping agents far below the required detection limits in sports drug testing.
Journal ArticleDOI
Enzyme-assisted synthesis and structure characterization of glucuronide conjugates of eleven anabolic steroid metabolites.
TL;DR: The enzyme-assisted in vitro synthesis of eleven glucuronide-conjugated anabolic androgenic steroid (AAS) metabolites was performed using biphenyl-induced rat liver microsomal enzymes, allowing for a rapid production pathway of stereochemically pure AAS glucuronides in milligram amount.
Journal ArticleDOI
Mass spectrometric analysis of androstan-17β-ol-3-one and androstadiene-17β-ol-3-one isomers
Mario Thevis,Wilhelm Schänzer +1 more
TL;DR: In this article, the authors used electrospray ionization and tandem mass spectrometry to identify and characterize steroids using deuterium labeling, MS3 experiments, and analyses of structurally closely related compounds.
Journal ArticleDOI
Metabolism of Growth Hormone Releasing Peptides
TL;DR: A comprehensive in vivo and in vitro study was performed in order to generate information on urinary metabolites potentially useful for routine doping controls on a new class of small C-terminally amidated peptides.
Journal ArticleDOI
Application of FAIMS to anabolic androgenic steroids in sport drug testing.
TL;DR: For all analytes, LC-FAIMS-MS/MS resulted in excellent interference removal, which effectively extends the post-dose detection time, and excellent recovery and precision were obtained for all compounds.