Piper T - Search Results

1

Analysis of endogenous steroids in urine by means of multi-immunoaffinity chromatography and isotope ratio mass spectrometry for sports drug testing.

Putz M, Piper T, Dubois M, Delahaut P, Thevis M. Putz M, et al. Among authors: piper t. Anal Bioanal Chem. 2019 Nov;411(28):7563-7571. doi: 10.1007/s00216-019-02169-3. Epub 2019 Nov 15. Anal Bioanal Chem. 2019. PMID: 31641821

2

Determination of the origin of urinary norandrosterone traces by gas chromatography combustion isotope ratio mass spectrometry.

Hebestreit M, Flenker U, Fusshöller G, Geyer H, Güntner U, Mareck U, Piper T, Thevis M, Ayotte C, Schänzer W. Hebestreit M, et al. Among authors: piper t. Analyst. 2006 Sep;131(9):1021-6. doi: 10.1039/b603668f. Epub 2006 Jul 28. Analyst. 2006. PMID: 17047802

3

Improved performance and maintenance in gas chromatography/isotope ratio mass spectrometry by precolumn solvent removal.

Flenker U, Hebestreit M, Piper T, Hülsemann F, Schänzer W. Flenker U, et al. Among authors: piper t. Anal Chem. 2007 Jun 1;79(11):4162-8. doi: 10.1021/ac0621468. Epub 2007 May 4. Anal Chem. 2007. PMID: 17477501

4

Detection of dehydroepiandrosterone misuse by means of gas chromatography- combustion-isotope ratio mass spectrometry.

Mareck U, Geyer H, Flenker U, Piper T, Thevis M, Schänzer W. Mareck U, et al. Among authors: piper t. Eur J Mass Spectrom (Chichester). 2007;13(6):419-26. doi: 10.1255/ejms.900. Eur J Mass Spectrom (Chichester). 2007. PMID: 18417762

5

Determination of 13C/12C ratios of endogenous urinary steroids: method validation, reference population and application to doping control purposes.

Piper T, Mareck U, Geyer H, Flenker U, Thevis M, Platen P, Schänzer W. Piper T, et al. Rapid Commun Mass Spectrom. 2008 Jul;22(14):2161-75. doi: 10.1002/rcm.3601. Rapid Commun Mass Spectrom. 2008. PMID: 18536069

6

Metabolism of androsta-1,4,6-triene-3,17-dione and detection by gas chromatography/mass spectrometry in doping control.

Parr MK, Fusshöller G, Schlörer N, Opfermann G, Piper T, Rodchenkov G, Schänzer W. Parr MK, et al. Among authors: piper t. Rapid Commun Mass Spectrom. 2009 Jan;23(2):207-18. doi: 10.1002/rcm.3861. Rapid Commun Mass Spectrom. 2009. PMID: 19089863

7

Determination of the deuterium/hydrogen ratio of endogenous urinary steroids for doping control purposes.

Piper T, Thevis M, Flenker U, Schänzer W. Piper T, et al. Rapid Commun Mass Spectrom. 2009 Jul;23(13):1917-26. doi: 10.1002/rcm.4098. Rapid Commun Mass Spectrom. 2009. PMID: 19462405

8

Determination of 13C/12C ratios of urinary epitestosterone and its main metabolites 5alpha- and 5beta-androstane-3alpha, 17alpha-diol.

Piper T, Riemann P, Opfermann G, Mareck U, Geyer H, Vajiala G, Flenker U, Schänzer W. Piper T, et al. Drug Test Anal. 2009 Nov;1(11-12):576-86. doi: 10.1002/dta.53. Drug Test Anal. 2009. PMID: 20355174

9

13C/12C ratios of endogenous urinary steroids investigated for doping control purposes.

Piper T, Flenker U, Mareck U, Schänzer W. Piper T, et al. Drug Test Anal. 2009 Feb;1(2):65-72. doi: 10.1002/dta.15. Drug Test Anal. 2009. PMID: 20355178

10

Determination of (13)C/(12)C ratios of urinary excreted boldenone and its main metabolite 5beta-androst-1-en-17beta-ol-3-one.

Piper T, Geyer H, Gougoulidis V, Flenker U, Schänzer W. Piper T, et al. Drug Test Anal. 2010 May;2(5):217-24. doi: 10.1002/dta.124. Drug Test Anal. 2010. PMID: 20468009

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