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Thomas Piper

Showing results (21-30 of 82) with videos related to

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Drug Testing and Analysis|December 7, 2020
An in vitro assay approach to investigate the potential impact of different doping agents on the steroid profileThomas Piper, Sonja Heimbach, Martin Adamczewski, et al.
Drug Testing and Analysis|May 4, 2011
Investigations on changes in ¹³C/¹²C ratios of endogenous urinary steroids after pregnenolone administrationThomas Piper, Christoph Schlug, Ute Mareck, et al.
Rapid Communications in Mass Spectrometry : RCM|October 14, 2010
Determination of (13)C/(12)C ratios of endogenous urinary steroids excreted as sulpho conjugatesThomas Piper, Georg Opfermann, Mario Thevis, et al.
The International Journal of Biostatistics|March 28, 2025
A multivariate Bayesian learning approach for improved detection of doping in athletes using urinary steroid profilesDimitra Eleftheriou, Thomas Piper, Mario Thevis, et al.
Rapid Communications in Mass Spectrometry : RCM|August 24, 2017
Carbon isotope ratios of endogenous steroids in Belgian Blue and Holstein cattle: Method development, reference population studies and application to steroid misuse controlThomas Piper, Marlen Putz, Philippe Delahaut, et al.
Drug Testing and Analysis|September 20, 2012
Investigations on hydrogen isotope ratios of endogenous urinary steroids: reference-population-based thresholds and proof-of-conceptThomas Piper, Andreas Thomas, Mario Thevis, et al.
Drug Testing and Analysis|November 7, 2022
AICAr to SAICAr ratio can serve as additional marker of AICAr useTim Sobolevsky, Thomas Piper, Brian Ahrens, et al.
Scientific Reports|March 18, 2026
Detection of sample swapping in anti-doping investigations using machine learningMaxx Richard Rahman, Thomas Piper, Mario Thevis, et al.
Analytical and Bioanalytical Chemistry|October 24, 2019
Analysis of endogenous steroids in urine by means of multi-immunoaffinity chromatography and isotope ratio mass spectrometry for sports drug testingMarlen Putz, Thomas Piper, Michel Dubois, et al.
Drug Testing and Analysis|October 14, 2021
Sensitive detection of testosterone and testosterone prohormone administrations based on urinary concentrations and carbon isotope ratios of androsterone and etiocholanoloneThomas Piper, Nadine Haenelt, Gregor Fusshöller, et al.
Pageof 9

Showing results (21-30 of 82) with videos related to

Sort By:
Pageof 9
Drug Testing and Analysis|December 7, 2020
An in vitro assay approach to investigate the potential impact of different doping agents on the steroid profileThomas Piper, Sonja Heimbach, Martin Adamczewski, et al.
Drug Testing and Analysis|May 4, 2011
Investigations on changes in ¹³C/¹²C ratios of endogenous urinary steroids after pregnenolone administrationThomas Piper, Christoph Schlug, Ute Mareck, et al.
Rapid Communications in Mass Spectrometry : RCM|October 14, 2010
Determination of (13)C/(12)C ratios of endogenous urinary steroids excreted as sulpho conjugatesThomas Piper, Georg Opfermann, Mario Thevis, et al.
The International Journal of Biostatistics|March 28, 2025
A multivariate Bayesian learning approach for improved detection of doping in athletes using urinary steroid profilesDimitra Eleftheriou, Thomas Piper, Mario Thevis, et al.
Rapid Communications in Mass Spectrometry : RCM|August 24, 2017
Carbon isotope ratios of endogenous steroids in Belgian Blue and Holstein cattle: Method development, reference population studies and application to steroid misuse controlThomas Piper, Marlen Putz, Philippe Delahaut, et al.
Drug Testing and Analysis|September 20, 2012
Investigations on hydrogen isotope ratios of endogenous urinary steroids: reference-population-based thresholds and proof-of-conceptThomas Piper, Andreas Thomas, Mario Thevis, et al.
Drug Testing and Analysis|November 7, 2022
AICAr to SAICAr ratio can serve as additional marker of AICAr useTim Sobolevsky, Thomas Piper, Brian Ahrens, et al.
Scientific Reports|March 18, 2026
Detection of sample swapping in anti-doping investigations using machine learningMaxx Richard Rahman, Thomas Piper, Mario Thevis, et al.
Analytical and Bioanalytical Chemistry|October 24, 2019
Analysis of endogenous steroids in urine by means of multi-immunoaffinity chromatography and isotope ratio mass spectrometry for sports drug testingMarlen Putz, Thomas Piper, Michel Dubois, et al.
Drug Testing and Analysis|October 14, 2021
Sensitive detection of testosterone and testosterone prohormone administrations based on urinary concentrations and carbon isotope ratios of androsterone and etiocholanoloneThomas Piper, Nadine Haenelt, Gregor Fusshöller, et al.
Pageof 9