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Items: 1 to 20 of 92

1.

Does the analysis of the enantiomeric composition of clenbuterol in human urine enable the differentiation of illicit clenbuterol administration from food contamination in sports drug testing?

Thevis M, Thomas A, Beuck S, Butch A, Dvorak J, Schänzer W.

Rapid Commun Mass Spectrom. 2013 Feb 28;27(4):507-12. doi: 10.1002/rcm.6485.

PMID:
23322656
2.

Distinction of clenbuterol intake from drug or contaminated food of animal origin in a controlled administration trial - the potential of enantiomeric separation for doping control analysis.

Parr MK, Blokland MH, Liebetrau F, Schmidt AH, Meijer T, Stanic M, Kwiatkowska D, Waraksa E, Sterk SS.

Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2017 Apr;34(4):525-535. doi: 10.1080/19440049.2016.1242169. Epub 2016 Oct 26.

PMID:
27690842
3.

Quantification of clenbuterol at trace level in human urine by ultra-high pressure liquid chromatography-tandem mass spectrometry.

Nicoli R, Petrou M, Badoud F, Dvorak J, Saugy M, Baume N.

J Chromatogr A. 2013 May 31;1292:142-50. doi: 10.1016/j.chroma.2012.12.008. Epub 2012 Dec 19.

PMID:
23294994
4.

Clenbuterol - regional food contamination a possible source for inadvertent doping in sports.

Guddat S, Fußhöller G, Geyer H, Thomas A, Braun H, Haenelt N, Schwenke A, Klose C, Thevis M, Schänzer W.

Drug Test Anal. 2012 Jun;4(6):534-8. doi: 10.1002/dta.1330. Epub 2012 Mar 22.

PMID:
22447758
5.

Adverse analytical findings with clenbuterol among U-17 soccer players attributed to food contamination issues.

Thevis M, Geyer L, Geyer H, Guddat S, Dvorak J, Butch A, Sterk SS, Schänzer W.

Drug Test Anal. 2013 May;5(5):372-6. doi: 10.1002/dta.1471. Epub 2013 Apr 4.

PMID:
23559541
6.

Rapid screening of clenbuterol in urine samples by desorption electrospray ionization tandem mass spectrometry.

Lin Z, Zhang S, Zhao M, Yang C, Chen D, Zhang X.

Rapid Commun Mass Spectrom. 2008 Jun;22(12):1882-8. doi: 10.1002/rcm.3565.

PMID:
18470868
7.

Development of a metabolomic approach based on liquid chromatography-high resolution mass spectrometry to screen for clenbuterol abuse in calves.

Courant F, Pinel G, Bichon E, Monteau F, Antignac JP, Le Bizec B.

Analyst. 2009 Aug;134(8):1637-46. doi: 10.1039/b901813a. Epub 2009 May 6.

PMID:
20448932
8.

Mass spectrometric characterization of urinary metabolites of the selective androgen receptor modulator S-22 to identify potential targets for routine doping controls.

Thevis M, Thomas A, Möller I, Geyer H, Dalton JT, Schänzer W.

Rapid Commun Mass Spectrom. 2011 Aug 15;25(15):2187-95. doi: 10.1002/rcm.5100.

PMID:
21710598
9.

Clenbuterol marketed as dietary supplement.

Parr MK, Koehler K, Geyer H, Guddat S, Schänzer W.

Biomed Chromatogr. 2008 Mar;22(3):298-300.

PMID:
17939172
10.

Detection of clenbuterol at trace levels in doping analysis using different gas chromatographic-mass spectrometric techniques.

Yang S, Liu X, Xing Y, Zhang D, Wang S, Wang X, Xu Y, Wu M, He Z, Zhao J.

J Chromatogr Sci. 2013 May-Jun;51(5):436-45. doi: 10.1093/chromsci/bms160. Epub 2012 Oct 5.

PMID:
23042839
11.

Clenbuterol in the horse: urinary concentrations determined by ELISA and GC/MS after clinical doses.

Harkins JD, Woods WE, Lehner AF, Fisher M, Tobin T.

J Vet Pharmacol Ther. 2001 Feb;24(1):7-14.

PMID:
11348482
12.

Stereochemical composition of clenbuterol residues in edible tissues of swine.

Smith DJ.

J Agric Food Chem. 2000 Dec;48(12):6036-43.

PMID:
11312776
13.

Determination of Vasopressin and Desmopressin in urine by means of liquid chromatography coupled to quadrupole time-of-flight mass spectrometry for doping control purposes.

Thomas A, Solymos E, Schänzer W, Baume N, Saugy M, Dellanna F, Thevis M.

Anal Chim Acta. 2011 Nov 30;707(1-2):107-13. doi: 10.1016/j.aca.2011.09.027. Epub 2011 Sep 24.

PMID:
22027126
14.

Resolution of R-(-) and S-(+)- enantiomers of clenbuterol in pharmaceutical preparations and black-market products using liquid chromatography-tandem mass spectrometry.

Velasco-Bejarano B, Bautista J, Noguez MO, Camacho E, Rodríguez ME, Rodríguez L.

Drug Test Anal. 2017 Nov;9(11-12):1738-1743. doi: 10.1002/dta.2294. Epub 2017 Oct 23.

PMID:
28856822
15.

Clenbuterol in the horse: confirmation and quantitation of serum clenbuterol by LC-MS-MS after oral and intratracheal administration.

Lehner AF, Harkins JD, Karpiesiuk W, Woods WE, Robinson NE, Dirikolu L, Fisher M, Tobin T.

J Anal Toxicol. 2001 May-Jun;25(4):280-7.

PMID:
11386642
16.

Analysis of octopamine in human doping control samples.

Thevis M, Koch A, Sigmund G, Thomas A, Schänzer W.

Biomed Chromatogr. 2012 May;26(5):610-5. doi: 10.1002/bmc.1705. Epub 2011 Sep 19.

PMID:
21932383
18.

Clenbuterol residues in pig muscle after repeat administration in a growth-promoting dose.

Pleadin J, Vulić A, Persi N, Vahcić N.

Meat Sci. 2010 Nov;86(3):733-7. doi: 10.1016/j.meatsci.2010.06.013. Epub 2010 Jun 20.

PMID:
20667663
19.
20.

Determination of Synacthen in urine for sports drug testing by means of nano-ultra-performance liquid chromatography/tandem mass spectrometry.

Thomas A, Kohler M, Schänzer W, Kamber M, Delahaut P, Thevis M.

Rapid Commun Mass Spectrom. 2009 Sep;23(17):2669-74. doi: 10.1002/rcm.4176.

PMID:
19630025

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