1. Addressing recent challenges in isotope ratio mass spectrometry: Development of a method applicable to 1‐androstene‐steroids, 6α‐hydroxy‐androstenedione, and androstatrienedione. Issue 11 (31st August 2022) Authors: Piper, Thomas; Thevis, Mario Journal: Drug testing and analysis Issue: Volume 14:Issue 11/12(2022) Page Start: 1891 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. AICAr to SAICAr ratio can serve as additional marker of AICAr use. Issue 11 (16th November 2022) Authors: Sobolevsky, Tim; Piper, Thomas; Ahrens, Brian; Thevis, Mario Journal: Drug testing and analysis Issue: Volume 14:Issue 11/12(2022) Page Start: 2017 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
3. An in vitro assay approach to investigate the potential impact of different doping agents on the steroid profile. Issue 5 (14th December 2020) Authors: Piper, Thomas; Heimbach, Sonja; Adamczewski, Martin; Thevis, Mario Other Names: Cawley Adam guestEditor. Journal: Drug testing and analysis Issue: Volume 13:Issue 5(2021) Page Start: 916 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
4. Androgens, sports, and detection strategies for anabolic drug use. Issue 4 (July 2022) Authors: Walpurgis, Katja; Piper, Thomas; Thevis, Mario Journal: Best practice & research Issue: Volume 36:Issue 4(2022) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
5. Carbon isotope ratios of endogenous steroids in Belgian Blue and Holstein cattle: Method development, reference population studies and application to steroid misuse control. (1st October 2017) Authors: Piper, Thomas; Putz, Marlen; Delahaut, Philippe; Thevis, Mario Journal: Rapid communications in mass spectrometry Issue: Volume 31:Number 21(2017) Page Start: 1793 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
6. Case Study: Atypical δ13C values of urinary norandrosterone. Issue 11 (25th October 2018) Authors: Hülsemann, Frank; Gougoulidis, Vassilios; Schertel, Thomas; Fusshöller, Gregor; Flenker, Ulrich; Piper, Thomas; Thevis, Mario Journal: Drug testing and analysis Issue: Volume 10:Issue 11/12(2018) Page Start: 1728 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
7. Detecting the misuse of 7‐oxo‐DHEA by means of carbon isotope ratio mass spectrometry in doping control analysis. (20th April 2020) Authors: Piper, Thomas; Fusshöller, Gregor; Geyer, Hans; Toboc, Ani; Dănilă, Mădălin‐George; Thevis, Mario Journal: Rapid communications in mass spectrometry Issue: Volume 34:Number 12(2020) Page Start: n/a Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
8. Determination of 13C/12C ratios of endogenous urinary 5‐amino‐imidazole‐4‐carboxamide 1β‐D‐ribofuranoside (AICAR). (10th April 2014) Authors: Piper, Thomas; Thomas, Andreas; Baume, Norbert; Sobolevsky, Timothy; Saugy, Martial; Rodchenkov, Grigory; Schänzer, Wilhelm; Thevis, Mario Journal: Rapid communications in mass spectrometry Issue: Volume 28:Number 11(2014) Page Start: 1194 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
9. Epiandrosterone sulfate prolongs the detectability of testosterone, 4‐androstenedione, and dihydrotestosterone misuse by means of carbon isotope ratio mass spectrometry. Issue 11 (27th October 2017) Authors: Piper, Thomas; Putz, Marlen; Schänzer, Wilhelm; Pop, Valentin; McLeod, Malcolm D.; Uduwela, Dimanthi R.; Stevenson, Bradley J.; Thevis, Mario Journal: Drug testing and analysis Issue: Volume 9:Issue 11/12(2017) Page Start: 1695 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
10. Expanding sports drug testing assays: Mass spectrometric characterization of the selective androgen receptor modulator drug candidates RAD140 and ACP‐105. (24th April 2013) Authors: Thevis, Mario; Piper, Thomas; Beuck, Simon; Geyer, Hans; Schänzer, Wilhelm Journal: Rapid communications in mass spectrometry Issue: Volume 27:Number 11(2013) Page Start: 1173 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗