Thomas Piper

Scopus Author ID ORCID

Publication Activity (10 Years)

Years Active: 2017-2024
Publications (10 Years): 21

Top Topics

Liquid Chromatography

Mass Spectrometry

Top Venues

Drug testing and analysis

Rapid communications in mass spectrometry : RCM

Analytical and bioanalytical chemistry

This page only lists publications with an associated author ORCID identifier.

Publications

Thomas Piper, Mario Thevis
Improving the Determination of Carbon Isotope Ratios of Endogenous Steroids Found in Human Serum. Drug testing and analysis (2024)
Oliver Krug, Sven Guddat, Christian Görgens, Thomas Piper, Tristan Möller, Mario Thevis
Determination of urinary deanol-N-oxide excretion profiles after ingestion of nutritional supplements containing deanol. Drug testing and analysis (2023)
Thomas Piper, Mario Thevis
Development of mass spectrometry-based methods for the detection of 11-ketotestosterone and 11-ketodihydrotestosterone. Drug testing and analysis (2023)
Thomas Piper, Sophia Krombholz, Mario Thevis
Carbon isotope ratios of phenethylamine and its urinary metabolite phenylacetylglutamine. Drug testing and analysis (2023)
Thomas Piper, Mario Thevis
Investigations into the human metabolism of ecdysterone. Drug testing and analysis (2023)
Thomas Piper, Mario Thevis
Development of mass spectrometry-based methods for the detection of 11-ketotestosterone and 11-ketodihydrotestosterone. Drug testing and analysis (2023)
Andersson Alexander, Thomas Piper, Lena Ekström, Angelica Lindén Hirschberg, Mario Thevis
Usefulness of serum androgen isotope ratio mass spectrometry (IRMS) to detect testosterone supplementation in women. Drug testing and analysis (2022)
Tim Sobolevsky, Thomas Piper, Brian Ahrens, Mario Thevis
AICAr to SAICAr ratio can serve as additional marker of AICAr use. Drug testing and analysis (2022)
Andersson Alexander, Thomas Piper, Lena Ekström, Angelica Lindén Hirschberg, Mario Thevis
Usefulness of serum androgen isotope ratio mass spectrometry (IRMS) to detect testosterone supplementation in women. Drug testing and analysis (2022)
Thomas Piper, Gregor Fusshöller, Wilhelm Schänzer, Mario Thevis
Investigations on the in vivo metabolism of 5α-androst-2-en-17-one. Rapid communications in mass spectrometry : RCM 36 (17) (2022)
Thomas Piper, Mario Thevis
Addressing recent challenges in isotope ratio mass spectrometry: Development of a method applicable to 1-androstene-steroids, 6α-hydroxy-androstenedione, and androstatrienedione. Drug testing and analysis (2022)
Thomas Piper, Nadine Haenelt, Gregor Fusshöller, Hans Geyer, Mario Thevis
Sensitive detection of testosterone and testosterone prohormone administrations based on urinary concentrations and carbon isotope ratios of androsterone and etiocholanolone. Drug testing and analysis (2021)
Thomas Piper, Hans Geyer, Eberhard Nieschlag, Lia Bally, Mario Thevis
Carbon isotope ratios of endogenous steroids found in human serum-method development, validation, and reference population-derived thresholds. Analytical and bioanalytical chemistry 413 (22) (2021)
Thomas Piper, Mario Thevis
Investigations in carbon isotope ratios of seized testosterone and boldenone preparations. Drug testing and analysis (2021)
Thomas Piper, Sonja Heimbach, Martin Adamczewski, Mario Thevis
An in vitro assay approach to investigate the potential impact of different doping agents on the steroid profile. Drug testing and analysis 13 (5) (2020)
Thomas Piper, Gregor Fusshöller, Hans Geyer, Ani Toboc, Mădălin-George Dănilă, Mario Thevis
Detecting the misuse of 7-oxo-DHEA by means of carbon isotope ratio mass spectrometry in doping control analysis. Rapid communications in mass spectrometry : RCM 34 (12) (2020)
Thomas Piper, Gregor Fusshöller, Wilhelm Schänzer, Andreas Lagojda, Dirk Kuehne, Mario Thevis
Studies on the in vivo metabolism of methylstenbolone and detection of novel long term metabolites for doping control analysis. Drug testing and analysis 11 (11-12) (2019)
Thomas Piper, Marlen Putz, Philippe Delahaut, Mario Thevis
Carbon isotope ratios of endogenous steroids in Belgian Blue and Holstein cattle: Method development, reference population studies and application to steroid misuse control. Rapid communications in mass spectrometry : RCM 31 (21) (2018)
Thomas Piper, Josef Dib, Marlen Putz, Gregor Fusshöller, Valentin Pop, Andreas Lagojda, Dirk Kuehne, Hans Geyer, Wilhelm Schänzer, Mario Thevis
Studies on the in vivo metabolism of the SARM YK11: Identification and characterization of metabolites potentially useful for doping controls. Drug testing and analysis 10 (11-12) (2018)
Frank Huelsemann, Vassilios Gougoulidis, Thomas Schertel, Gregor Fusshöller, Ulrich Flenker, Thomas Piper, Mario Thevis
Case Study: Atypical δ13 C values of urinary norandrosterone. Drug testing and analysis 10 (11-12) (2018)
Thomas Piper, Marlen Putz, Wilhelm Schänzer, Valentin Pop, Malcolm Donald McLeod, Dimanthi R Uduwela, Bradley J Stevenson, Mario Thevis
Epiandrosterone sulfate prolongs the detectability of testosterone, 4-androstenedione, and dihydrotestosterone misuse by means of carbon isotope ratio mass spectrometry. Drug testing and analysis 9 (11-12) (2017)