Trimethylsilylation : aspects for derivatisation

von Opfermann, G. (Autor), ... Schänzer, Wilhelm (Autor)
Erschienen in Recent advances in doping analysis (4) : Proceedings of the Manfred Donike Workshop ; 14th Cologne Workshop on Dope Analysis ; 17th to 22nd March 1996, Köln: Sport u. Buch Strauß (Verlag), 1997, S. 247-252, Lit.

1-(N,N-Diisopropylamino)-n-Alkanes : a new reference system for systemical identification of nitrogen containing substances by gas-chromatography and nitrogen specific or mass spec...

von Nolteernsting, E. (Autor), ... Opfermann, G. (Autor), Donike, M. (Autor)
Erschienen in Recent advances in doping analysis (3) : in memoriam Manfred Donike ; Proceedings of the 13th Cologne Workshop on Dope Analysis ; 12th to 17th March 1995, Köln: Sport u. Buch Strauß (Verlag), 1996, S. 369-388, Lit.

Mass spectrometric characterization of synthetic steroid derivates

von Thevis, Mario (Autor), ... Opfermann, G. (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Recent advances in doping analysis (12) : Proceedings of the Manfred Donike Workshop ; 22th Cologne Workshop on Dope Analysis ; 7th to 12th March 2004, Köln: Sport u. Buch Strauß (Verlag), 2004, S. 141-148, Lit.

Nachweis des Plasmavolumenexpanders Hydroxyethylstärke in Humanurin

von Thevis, Mario (Autor), ... Opfermann, G. (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Deutsche Zeitschrift für Sportmedizin, 52 (2001), 11, S. 316-320, Lit.

Gas chromatography/mass spectometry identification of long-term excreted metabolites of the anabolic steroid 4-chloro-1,2-dehydro-17α-methyltestosterone in humans

von Schänzer, Wilhelm (Autor), ... Horning, S. (Autor), Opfermann, G. (Autor), Donike, M. (Autor)
Erschienen in Recent advances in doping analysis (4) : Proceedings of the Manfred Donike Workshop ; 14th Cologne Workshop on Dope Analysis ; 17th to 22nd March 1996, Köln: Sport u. Buch Strauß (Verlag), 1997, S. 33

Analytical properties of 4-Hydroxysteroids and some Esters

von Parr, M.K. (Autor), ... Opfermann, G. (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Recent advances in doping analysis (12) : Proceedings of the Manfred Donike Workshop ; 22th Cologne Workshop on Dope Analysis ; 7th to 12th March 2004, Köln: Sport u. Buch Strauß (Verlag), 2004, S. 129-138, Lit.

Detection of new 17-alkylated anabolic steroids on WADA 2006 list

von Parr, M.K. (Autor), ... Opfermann, G. (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Recent advances in doping analysis (14) : Proceedings of the Manfred Donike Workshop ; 24th Cologne Workshop on Dope Analysis ; 4th to 9th June 2006, Köln: Sportverl. Strauß (Verlag), 2006, S. 249-258, Lit.

Analytical methods for the detection of clenbuterol

von Parr, M.K. (Autor), ... Opfermann, G. (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Bioanalysis, 1 (2009), 2, S. 437-450, Lit.

Synthesis of stably deuterated Ephedrines and Theobromine promoted by N-Methyl-N-Trimethylsilyltrifluroacetamide

von Thevis, Mario (Autor), ... Opfermann, G. (Autor), Krug, O. (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Recent advances in doping analysis (12) : Proceedings of the Manfred Donike Workshop ; 22th Cologne Workshop on Dope Analysis ; 7th to 12th March 2004, Köln: Sport u. Buch Strauß (Verlag), 2004, S. 195-196, Lit.

Prescription drugs and new anabolic Steroids in nutritional supplements

von Parr, M.K. (Autor), ... Geyer, Hans (Autor), Opfermann, G. (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Recent advances in doping analysis (12) : Proceedings of the Manfred Donike Workshop ; 22th Cologne Workshop on Dope Analysis ; 7th to 12th March 2004, Köln: Sport u. Buch Strauß (Verlag), 2004, S. 71-80, Lit.

Identification of the aromatase inhibitor aminoglutethimide in doping analysis

von Mareck, Ute (Autor), ... Sigmund, G. (Autor), Opfermann, G. (Autor), Geyer, Hans (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Recent advances in doping analysis (10) : Proceedings of the Manfred Donike Workshop ; 20th Cologne Workshop on Dope Analysis ; 10th to 15th March 2002, Köln: Sport u. Buch Strauß (Verlag), 2002, S. 35-50, Lit.

Identification of non-steroidal aromatase inhibitors in doping analysis

von Mareck, Ute (Autor), ... Sigmund, G. (Autor), Opfermann, G. (Autor), Geyer, Hans (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. 91-100, Lit.

Screening on Letrozole and its metabolite in doping analysis

von Mareck, U. (Autor), ... Sigmund, G. (Autor), Opfermann, G. (Autor), Geyer, Hans (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Recent advances in doping analysis (12) : Proceedings of the Manfred Donike Workshop ; 22th Cologne Workshop on Dope Analysis ; 7th to 12th March 2004, Köln: Sport u. Buch Strauß (Verlag), 2004, S. 203-209, Lit.

Identification of the aromatase inhibitor aminoglutethimide in urine by gas chromatography/mass spectrometry

von Mareck, U. (Autor), ... Sigmund, G. (Autor), Opfermann, G. (Autor), Geyer, Hans (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Rapid communications in mass spectrometry, 16 (2002), 24, 2209-2214, Lit.

Detection of meclofenoxate and its degradation products Dimethylaminoethanol and p-chloro-phenoxyacetic acid

von Guddat, S. (Autor), ... Sigmund, G. (Autor), Thomas, A. (Autor), Opfermann, G. (Autor), Thevis, Mario (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Recent advances in doping analysis (14) : Proceedings of the Manfred Donike Workshop ; 24th Cologne Workshop on Dope Analysis ; 4th to 9th June 2006, Köln: Sportverl. Strauß (Verlag), 2006, S. 399-402, 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.

Screening for Tamoxifen, Clomiphene and Cyclofenil in doping analysis

von Mareck-Engelke, U. (Autor), ... Sigmund, G. (Autor), Opfermann, G. (Autor), Geyer, Hans (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Recent advances in doping analysis (9) : Proceedings of the Manfred Donike Workshop ; 19th Cologne Workshop on dope analysis ; 18th to 23rd March 2001, Köln: Sport u. Buch Strauß (Verlag), 2001, S. 53-61, Lit.

Comparison of uncertainties : the standard deviations of the method of two calibration curves with different preparatory steps

von Opfermann, G. (Autor), ... Kohler, M. (Autor), Fußhöller, G. (Autor), Parr, M.K. (Autor), Sigmund, G. (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Recent advances in doping analysis (14) : Proceedings of the Manfred Donike Workshop ; 24th Cologne Workshop on Dope Analysis ; 4th to 9th June 2006, Köln: Sportverl. Strauß (Verlag), 2006, S. 489-492, Lit.

Synthesis of reference compunds for the identification of metabolites of 4-Hydroxytestosterone

von Parr, M.K. (Autor), ... Fußhöller, G. (Autor), Opfermann, G. (Autor), Kohler, M. (Autor), Hebestreit, M. (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Recent advances in doping analysis (13) : Proceedings of the Manfred Donike Workshop ; 23th Cologne Workshop on Dope Analysis ; 27th February to 4th March 2005, Köln: Sport u. Buch Strauß (Verlag), 2005, S. 65-74, Lit.

Identification of steroid isoxazole isomers marketed as designer supplement

von Parr, M.K. (Autor), ... Gütschow, M. (Autor), Daniels, J. (Autor), Opfermann, G. (Autor), Thevis, Mario (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Steroids, 74 (2009), 3, S. 322-328, Lit.