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Drug Testing and Analysis
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January 18, 2023
Development of mass spectrometry-based methods for the detection of 11-ketotestosterone and 11-ketodihydrotestosterone
Thomas Piper, Mario Thevis
Drug Testing and Analysis
|
October 1, 2023
Investigations into the human metabolism of ecdysterone
Thomas Piper, Mario Thevis
Drug Testing and Analysis
|
August 24, 2022
Addressing recent challenges in isotope ratio mass spectrometry: Development of a method applicable to 1-androstene-steroids, 6α-hydroxy-androstenedione, and androstatrienedione
Thomas Piper, Mario Thevis
Methods in Enzymology
|
September 16, 2017
Applications of Isotope Ratio Mass Spectrometry in Sports Drug Testing Accounting for Isotope Fractionation in Analysis of Biological Samples
Thomas Piper, Mario Thevis
Drug Testing and Analysis
|
September 16, 2024
Improving the Determination of Carbon Isotope Ratios of Endogenous Steroids Found in Human Serum
Thomas Piper, Mario Thevis
Drug Testing and Analysis
|
June 30, 2021
Investigations in carbon isotope ratios of seized testosterone and boldenone preparations
Thomas Piper, Mario Thevis
Journal of Pharmaceutical and Biomedical Analysis
|
August 14, 2021
Recent advances in identifying and utilizing metabolites of selected doping agents in human sports drug testing
Mario Thevis, Thomas Piper, Andreas Thomas
The Journal of Steroid Biochemistry and Molecular Biology
|
December 25, 2015
Revisiting the metabolism of 19-nortestosterone using isotope ratio and high resolution/high accuracy mass spectrometry
Thomas Piper, Wilhelm Schänzer, Mario Thevis
Drug Testing and Analysis
|
December 17, 2025
Investigations Into the Human Metabolism of Trestolone (7α-Methyl-19-Nortestosterone)
Thomas Piper, Gregor Fusshöller, Mario Thevis
Drug Testing and Analysis
|
January 5, 2011
Degradation of urine samples and its influence on the ¹³C/¹²C ratios of excreted steroids
Thomas Piper, Hans Geyer, Wilhelm Schänzer
Page
of 9
Search research articles
Search
Showing results (1-10 of 82) with videos related to
Sort By:
Page
of 9
Drug Testing and Analysis
|
January 18, 2023
Development of mass spectrometry-based methods for the detection of 11-ketotestosterone and 11-ketodihydrotestosterone
Thomas Piper, Mario Thevis
Drug Testing and Analysis
|
October 1, 2023
Investigations into the human metabolism of ecdysterone
Thomas Piper, Mario Thevis
Drug Testing and Analysis
|
August 24, 2022
Addressing recent challenges in isotope ratio mass spectrometry: Development of a method applicable to 1-androstene-steroids, 6α-hydroxy-androstenedione, and androstatrienedione
Thomas Piper, Mario Thevis
Methods in Enzymology
|
September 16, 2017
Applications of Isotope Ratio Mass Spectrometry in Sports Drug Testing Accounting for Isotope Fractionation in Analysis of Biological Samples
Thomas Piper, Mario Thevis
Drug Testing and Analysis
|
September 16, 2024
Improving the Determination of Carbon Isotope Ratios of Endogenous Steroids Found in Human Serum
Thomas Piper, Mario Thevis
Drug Testing and Analysis
|
June 30, 2021
Investigations in carbon isotope ratios of seized testosterone and boldenone preparations
Thomas Piper, Mario Thevis
Journal of Pharmaceutical and Biomedical Analysis
|
August 14, 2021
Recent advances in identifying and utilizing metabolites of selected doping agents in human sports drug testing
Mario Thevis, Thomas Piper, Andreas Thomas
The Journal of Steroid Biochemistry and Molecular Biology
|
December 25, 2015
Revisiting the metabolism of 19-nortestosterone using isotope ratio and high resolution/high accuracy mass spectrometry
Thomas Piper, Wilhelm Schänzer, Mario Thevis
Drug Testing and Analysis
|
December 17, 2025
Investigations Into the Human Metabolism of Trestolone (7α-Methyl-19-Nortestosterone)
Thomas Piper, Gregor Fusshöller, Mario Thevis
Drug Testing and Analysis
|
January 5, 2011
Degradation of urine samples and its influence on the ¹³C/¹²C ratios of excreted steroids
Thomas Piper, Hans Geyer, Wilhelm Schänzer
Page
of 9