Testing doping agents from exhaled breath : pilot study data

von Krug, Oliver (Autor), ... Thomas, Andreas (Autor), Geyer, Hans (Autor), Thevis, Mario (Autor)
Erschienen in Recent advances in doping analysis (26) : Proceedings of the Manfred Donike Workshop ; 36th Cologne Workshop on Dope Analysis ; 23rd to 26th April 2018, Hellenthal: Sportverl. Strauß (Verlag), 2018, S. 21-28, Lit.

Expanding analytical options in sports drug testing : mass spectrometric detection of prohibited substances in exhaled breath

von Thevis, Mario (Autor), ... Krug, Oliver (Autor), Geyer, Hans (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Rapid communications in mass spectrometry, 31 (2017), 15, S. 1290-1296, Lit.

Screening procedure for anabolic steroids - the control of the hydrolysis with deuterated androsterone glucuronide and studies with direct hydrolysis

von Geyer, Hans (Autor), ... Schänzer, Wilhelm (Autor), Marek-Engelke, U. (Autor), Nolteernsting, E. (Autor), Opfermann, G. (Autor), Schänzer, Wilhelm (Hrsg.), Geyer, Hans (Hrsg.), Gotzmann, Andrea (Hrsg.), Marek-Engelke, U. (Hrsg.)
Erschienen in Recent advances in doping analysis (5) : Proceedings of the Manfred Donike Workshop ; 15th Cologne Workshop on Dope Analysis ; 23rd to 28th February 1997, Köln: Sport u. Buch Strauß (Verlag), 1998, 1998. S. 99-101, Lit., Lit.

Measurement of 13C/12C-ratios to confirm misuse of endogenous steroids

von Flenker, U. (Autor), ... Horning, S. (Autor), Nolteernsting, E. (Autor), Geyer, Hans (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Recent advances in doping analysis (6) : Proceedings of the Manfred Donike Workshop ; 16th Cologne Workshop on Dope Analysis ; 15th to 20th March 1998, Köln: Sport u. Buch Strauß (Verlag), 1999, S. 243-256, Lit.

Black market products suspected to contain doping relevant ingredients - report for 2021

von Krug, Oliver (Autor), ... Geyer, Hans (Autor), Thomas, Andreas (Autor), Piper, Thomas (Autor), Thevis, Mario (Autor)
Erschienen in Recent advances in doping analysis (30) : Proceedings of the Manfred Donike Workshop ; 40th Cologne workshop on dope analysis ; 28th March to 1st April 2022, Hellenthal: Sportverl. Strauß (Verlag), 2022, S. 157-161, Lit.

The matrix problem in calibration of the GC/MS for endogenous steroids : the search for an artificial urine

von Geyer, Hans (Autor), ... Mareck-Engelke, U. (Autor), Nolteernsting, E. (Autor), Opfermann, G. (Autor), Donike, M. (Autor)
Erschienen in Recent advances in doping analysis (2) : Proceedings of the 12th Cologne Workshop on Dope Analysis ; 10th to 15th April 1994, Köln: Sport u. Buch Strauß (Verlag), 1995, S. 199-209, Lit.

Standardisation of the T/E-determination by deuterated internal standards

von Nolteernsting, E. (Autor), ... Geyer, Hans (Autor), Mareck-Engelke, U. (Autor), Schänzer, Wilhelm (Autor), Donike, M. (Autor)
Erschienen in Recent advances in doping analysis (2) : Proceedings of the 12th Cologne Workshop on Dope Analysis ; 10th to 15th April 1994, Köln: Sport u. Buch Strauß (Verlag), 1995, S. 113-120, Lit.

Black market products suspected to contain doping relevant ingredients - report for 2019-2020

von Krug, Oliver (Autor), ... Geyer, Hans (Autor), Thomas, Andreas (Autor), Walpurgis, Katja (Autor), Piper, Thomas (Autor), Thevis, Mario (Autor)
Erschienen in Recent advances in doping analysis (29) : Proceedings of the Manfred Donike Workshop ; 39th Cologne Workshop on Dope Analysis 22nd to 26th March 2021, Hellenthal: Sportverl. Strauß (Verlag), 2021, S. 122-127, Lit.

Analytical challenges in sports drug testing

von Thevis, Mario (Autor), ... Krug, Oliver (Autor), Geyer, Hans (Autor), Walpurgis, Katja (Autor), Baume, Norbert (Autor), Thomas, Andreas (Autor)
Erschienen in Analytical and bioanalytical chemistry, 410 (2018), 9, S. 2275-2281, Lit.

Quantifying cobalt in doping control urine samples : a pilot study

von Krug, Oliver (Autor), ... Kutscher, Daniel (Autor), Piper, Thomas (Autor), Geyer, Hans (Autor), Schänzer, Wilhelm (Autor), Thevis, Mario (Autor)
Erschienen in Drug testing and analysis, 6 (2014), 11/12 (32nd Cologne workshop: Advances in sports drug testing), S. 1186-1190, Lit.

Performance test of the new mass selective detector HP 5973 in routine dope analysis of anabolic androgenic steroids

von Nolteernsting, E. (Autor), ... Schänzer, Wilhelm (Autor), Schänzer, Wilhelm (Hrsg.), Geyer, Hans (Hrsg.), Gotzmann, Andrea (Hrsg.), Marek-Engelke, U. (Hrsg.)
Erschienen in Recent advances in doping analysis (5) : Proceedings of the Manfred Donike Workshop ; 15th Cologne Workshop on Dope Analysis ; 23rd to 28th February 1997, Köln: Sport u. Buch Strauß (Verlag), 1998, 1998. S. 149-156, Lit., Lit.

Chromatographic-mass spectrometric analysis of the urinary metabolite profile of chlorphenesin observed after dermal application of chlorphenesin-containing sunscreen

von Rubio, Ana (Autor), ... Görgens, Christian (Autor), Krug, Oliver (Autor), Okano, Masato (Autor), Fedoruk, Matthew (Autor), Ahrens, Brian (Autor), Geyer, Hans (Autor), Thevis, Mario (Autor)
Erschienen in Rapid communications in mass spectrometry, 35 (2021), 21, Art.-ID e9183, [9 S.], Lit.

Endogenous production and excretion of boldenone (17β-hydroxyandrosta- 1,4-dien-3-one), an androgenic anabolic steroid

von Schänzer, Wilhelm (Autor), ... Geyer, Hans (Autor), Gotzmann, Andrea (Autor), Horning, S. (Autor), Marek-Engelke, U. (Autor), Nitschke, R. (Autor), Nolteernsting, E. (Autor), Donike, M. (Autor)
Erschienen in Recent advances in doping analysis (2) : Proceedings of the 12th Cologne Workshop on Dope Analysis ; 10th to 15th April 1994, Köln: Sport u. Buch Strauß (Verlag), 1995, S. 211, Lit.

Mass spectrometric analysis of black market products by HPLC-(HR)MS, GC-(HR)MS and 1D-gel electrophoresis-UPLC-MSn

von Krug, Oliver (Autor), ... Thomas, Andreas (Autor), Walpurgis, Katja (Autor), Piper, Thomas (Autor), Sigmund, Gerd (Autor), Geyer, Hans (Autor), Schänzer, Wilhelm (Autor), Thevis, Mario (Autor)
Erschienen in Recent advances in doping analysis (21) : Proceedings of the Manfred-Donike-Workshop ; 31th Cologne Workshop on Dope Analysis ; 24th February to 1st March 2013, Köln: Sportverl. Strauß (Verlag), 2013, S. 169-172, Lit.

Monitoring drug residues in donor blood/plasma samples using LC-(MS)/MS : a pilot study

von Thevis, Mario (Autor), ... Krug, Oliver (Autor), Geyer, Hans (Autor), Wenzel, Folker (Autor), Bux, Jürgen (Autor), Stahl, Linda (Autor), Hollmann, Wildor (Autor), Thom, Andreas (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Drug testing and analysis, 5 (2013), 5-6, S. 380-383, Lit.

Detection of dihydrotestosterone (DHT) doping: alterations in the steroid profile and reference ranges for DHT and its 5 alpha-metabolites

von Donike, M. (Autor), ... Ueki, M. (Autor), Kuroda, Y. (Autor), Geyer, Hans (Autor), Nolteernsting, E. (Autor), Rauth, S. (Autor), Schänzer, Wilhelm (Autor), Schindler, U. (Autor), Voelker, E. (Autor), Fujisaki, M. (Autor)
Erschienen in The Journal of sports medicine and physical fitness, 35 (1995), 4, S. 235-250, Lit.

Effects of 3 weeks of oral low-dose cobalt on hemoglobin mass and aerobic performance

von Hoffmeister, Torben (Autor), ... Schwenke, Dirk (Autor), Krug, Oliver (Autor), Wachsmuth, Nadine Bianca (Autor), Geyer, Hans (Autor), Thevis, Mario (Autor), Byrnes, William C. (Autor), Schmidt, Walter Franz-Joachim (Autor)
Erschienen in Frontiers in physiology, 9 (2018), Art.-ID 1289, [9 S.], Lit.

Investigations into Annona fruit consumption as a potential source of dietary higenamine intake in the context of sports drug testing

von Rubio, Ana (Autor), ... Thomas, Andreas (Autor), Euler, Luisa (Autor), Geyer, Hans (Autor), Krug, Oliver (Autor), Reis, Gabriel (Autor), Costa Padilha, Monica (Autor), Gualberto Pereira, Henrique Marcelo (Autor), Muniz-Santos, Renan (Autor), Cameron, Luiz Claudio (Autor), Stojanovic, Biljana (Autor), Kuehne, Dirk (Autor), Lagojda, Andreas (Autor), McLeod, Malcolm Donald (Autor), Thevis, Mario (Autor)
Erschienen in Drug testing and analysis, 15 (2023), 11/12 (The 41st Manfred Donike Workshop on Doping Analysis), S. 1488-1502, Lit.