The atypical excretion profile of meldonium : comparison of urinary detection windows after single- and multiple-dose application in healthy volunteers

von Görgens, Christian (Autor), ... Guddat, Sven (Autor), Bosse, Christina (Autor), Geyer, Hans (Autor), Pop, Valentin (Autor), Schänzer, Wilhelm (Autor), Thevis, Mario (Autor)
Erschienen in Journal of pharmaceutical and biomedical analysis, 138 (2017), Mai, S. 175-179, Lit.

Comprehensive plasma-screening for known and unknown substances in doping controls

von Thomas, Andreas (Autor), ... Guddat, Sven (Autor), Kohler, Maxie (Autor), Krug, Oliver (Autor), Schänzer, Wilhelm (Autor), Petrou, Michael (Autor), Thevis, Mario (Autor)
Erschienen in Rapid communications in mass spectrometry, 24 (2010), 8, S. 1124–1132, Lit.

Application of FAIMS to anabolic androgenic steroids in sport drug testing

von Guddat, Sven (Autor), ... Thevis, Mario (Autor), Kapron, James (Autor), Thomas, Andreas (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Drug testing and analysis, 1 (2009), 11/12, S. 545 - 553, Lit.

Temporal indication of cannabis use by means of THC glucuronide determination

von Mareck, Ute (Autor), ... Haenelt, Nadine (Autor), Geyer, Hans (Autor), Guddat, Sven (Autor), Kamber, Matthias (Autor), Brenneisen, Rudolf (Autor), Thevis, Mario (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Drug testing and analysis, 1 (2009), 11/12, S. 505 - 510, Lit.

The diuretic Mannitol : a problem in doping analysis

von Guddat, Sven (Autor), ... Thevis, Mario (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Recent advances in doping analysis (11) : Proceedings of the Manfred Donike Workshop ; 21st Cologne Workshop on Dope Analysis ; 16th to 21st March 2003, Köln: Sport u. Buch Strauß (Verlag), 2003, S. 323-328, Lit.

Stability of a representative selection of drugs in horse blood

von Schenk, I. (Autor), ... Machnik, M. (Autor), Guddat, Sven (Autor), Schubert, D. (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Proceedings of the 17th International Conference of Racing Analysts and Veterinarians : Antalya, Turkey, 2008, Suffolk: R & W Publications (Verlag), 2009, S. 225-235, Lit.

Doping control analysis of methoxyphenamine using liquid chromatography-tandem mass spectrometry

von Thevis, Mario (Autor), ... Sigmund, Gerd (Autor), Koch, Anja (Autor), Guddat, Sven (Autor), Maurer, Hans H. (Autor), Schänzer, Wilhelm (Autor)
Erschienen in European journal of mass spectrometry, 14 (2008), 3, S. 145–152, Lit.

Gas-phase water adduct formation of IOX-2 in ion trap mass spectrometers

von Görgens, Christian (Autor), ... Guddat, Sven (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. 147-151, Lit.

Quantitative analysis of urinary glycerol levels for doping control purposes using gas chromatography-mass spectrometry

von Thevis, Mario (Autor), ... Guddat, Sven (Autor), Flenker, Ulrich (Autor), Schänzer, Wilhelm (Autor)
Erschienen in European journal of mass spectrometry, 14 (2008), 3, S. 117–125, Lit.

Identification and quantification of the osmodiuretic mannitol in urine for sports drug testing using gas chromatography-mass spectrometry

von Guddat, Sven (Autor), ... Thevis, Mario (Autor), Schänzer, Wilhelm (Autor)
Erschienen in European journal of mass spectrometry, 14 (2008), 3, S. 127–133, Lit.

Rapid determination of urinary di(2-ethylhexyl) phthalate metabolites based on liquid chromatography/tandem mass spectrometry as a marker for blood transfusion in sports drug testi...

von Solymos, Emese (Autor), ... Guddat, Sven (Autor), Geyer, Hans (Autor), Flenker, Ulrich (Autor), Thomas, Andreas (Autor), Segura, Jordi (Autor), Ventura, Rosa Alemany (Autor), Platen, Petra (Autor), Schulte-Mattler, Martin (Autor), Thevis, Mario (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Analytical and bioanalytical chemistry, 401 (2011), 2, S. 517-528, Lit.

Doping control analysis of trenbolone and related compounds using liquid chromatography-tandem mass spectrometry

von Thevis, Mario (Autor), ... Guddat, Sven (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Steroids, 74 (2009), 3, S. 315-321, Lit.

Screening and confirmation of myo-inositol trispyrophosphate (ITPP) in human urine by hydrophilic interaction liquid chromatography high resolution / high accuracy mass spectrometr...

von Görgens, Christian (Autor), ... Guddat, Sven (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. 1102-1107, Lit.

Mitragynine (Kratom) : monitoring in sports drug testing

von Guddat, Sven (Autor), ... Görgens, Christian (Autor), Steinhart, Vanessa (Autor), Schänzer, Wilhelm (Autor), Thevis, Mario (Autor)
Erschienen in Drug testing and analysis, 8 (2016), 11/12 (34th Cologne workshop: Advances in sports drug testing), S. 1114-1118, Lit.

High-throughput screening for various classes of doping agents using a new ‘dilute-and-shoot’ liquid chromatography-tandem mass spectrometry multi-target approach

von Guddat, Sven (Autor), ... Solymos, Emese (Autor), Orlovius, Anne-Katrin (Autor), Thomas, Andreas (Autor), Sigmund, Gerd (Autor), Geyer, Hans (Autor), Thevis, Mario (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Drug testing and analysis, 3 (2011), 11/12 (29th Cologne Workshop: Advances in Sports Drug Testing), S. 836-850, Lit.

Recent improvements in sports drug testing concerning the initial testing for peptidic drugs (< 2 kDa) : sample preparation, mass spectrometric detection, and data review

von Görgens, Christian (Autor), ... Guddat, Sven (Autor), Thomas, Andreas (Autor), Thevis, Mario (Autor)
Erschienen in Drug testing and analysis, 10 (2018), 11/12 (36th Cologne workshop: Advances in sports drug testing), S. 1755-1760, Lit.

Terbutaline sulfoconjugate : characterization and urinary excretion monitored by LC/ESI-MS/MS

von Orlovius, Anne-Katrin (Autor), ... Guddat, Sven (Autor), Parr, Maria Kristina (Autor), Kohler, Maxie (Autor), Gütschow, M. (Autor), Thevis, Mario (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Drug testing and analysis, 1 (2009), 11/12, S. 568-575, Lit.

In vitro formation of fenoterol sulfates using different tissue preparations and recombinant sulfiotransferases

von Orlovius, Anne-Katrin (Autor), ... Guddat, Sven (Autor), Parr, Maria Kristina (Autor), Gütschow, Michael (Autor), Thevis, Mario (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Recent advances in doping analysis (20) : Proceedings of the Manfred-Donike-Workshop ; 30th Cologne Workshop on Dope Analysis ; 26th February to 2nd March 2012 2. Variante, Köln: Sportverl. Strauß (Verlag), 2012, S. 11, Lit.

Detection of urinary phase-I and phase-II metabolites of ephedrine and oxilofrine by LC-MS/MS

von Orlovius, Anne-Katrin (Autor), ... Parr, Maria Kristina (Autor), Guddat, Sven (Autor), Gütschow, Michael (Autor), Thevis, Mario (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Recent advances in doping analysis (18) : Proceedings of the Manfred-Donike-Workshop ; 28th Cologne Workshop on Dope Analysis , 7th to 12th March 2010, Köln: Sportverl. Strauß (Verlag), 2010, S. 152-155, Lit.

Synthesis, characterization, and detection of new oxandrolone metabolites as long-term markers in sports drug testing

von Guddat, Sven (Autor), ... Fußhöller, Gregor (Autor), Beuck, Simon (Autor), Thomas, Andreas (Autor), Geyer, Hans (Autor), Rydevik, Axel (Autor), Bondesson, Ulf (Autor), Hedeland, Mikael (Autor), Lagojda, Andreas (Autor), Schänzer, Wilhelm (Autor), Thevis, Mario (Autor)
Erschienen in Analytical and bioanalytical chemistry, 405 (2013), 25, S. 8285-8294, Lit.