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Opfermann, Georg
33  results:
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1

Complementing the characterization of in vivo generated N‐g..:

Thevis, Mario ; Dib, Josef ; Thomas, Andreas...
Drug Testing and Analysis.  7 (2015)  11-12 - p. 1050-1056 , 2015
Link: https://doi.org/10.1002/..
 
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2

Expanding analytical possibilities concerning the detection..:

Schänzer, Wilhelm ; Guddat, Sven ; Thomas, Andreas...
Drug Testing and Analysis.  5 (2013)  11-12 - p. 810-818 , 2013
Link: https://doi.org/10.1002/..
 
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3

Unexpected contribution of cytochrome P450 enzymes CYP11B2 ..:

Parr, Maria Kristina ; Zöllner, Andy ; Fußhöller, Gregor...
Toxicology Letters.  213 (2012)  3 - p. 381-391 , 2012
Link: https://doi.org/10.1016/..
 
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4

Endocrine Characterization of the Designer Steroid Methyl-1..:

Parr, Maria K. ; Blatt, Christina ; Zierau, Oliver...
Endocrinology.  152 (2011)  12 - p. 4718-4728 , 2011
Link: https://doi.org/10.1210/..
 
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5

Detection of Δ6-methyltestosterone in a "dietary supplement..:

Parr, Maria K. ; Fußhöller, Gregor ; Schlörer, Nils...
Toxicology Letters.  201 (2011)  2 - p. 101-104 , 2011
Link: https://doi.org/10.1016/..
 
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6

Seized designer supplement named "1-Androsterone": Identifi..:

Parr, Maria K. ; Opfermann, Georg ; Geyer, Hans...
Steroids.  76 (2011)  6 - p. 540-547 , 2011
Link: https://doi.org/10.1016/..
 
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7

Determination of13C/12C ratios of endogenous urinary steroi..:

Piper, Thomas ; Opfermann, Georg ; Thevis, Mario.
Rapid Communications in Mass Spectrometry.  24 (2010)  21 - p. 3171-3181 , 2010
Link: https://doi.org/10.1002/..
 
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8

Determination of 13C/12C ratios of urinary epitestosterone ..:

Piper, Thomas ; Riemann, Phillip ; Opfermann, Georg...
Drug Testing and Analysis.  1 (2009)  11-12 - p. 576-586 , 2009
Link: https://doi.org/10.1002/..
 
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9

Identification of steroid isoxazole isomers marketed as des..:

Parr, Maria K. ; Gütschow, Michael ; Daniels, Jörg...
Steroids.  74 (2009)  3 - p. 322-328 , 2009
Link: https://doi.org/10.1016/..
 
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10

Factors influencing the steroid profile in doping control a..:

Mareck, Ute ; Geyer, Hans ; Opfermann, Georg..
Journal of Mass Spectrometry.  43 (2008)  7 - p. 877-891 , 2008
Link: https://doi.org/10.1002/..
 
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11

6α‐Methylandrostenedione: gas chromatographic mass spectrom..:

Parr, Maria K. ; Kazlauskas, Rymantas ; Schlörer, Nils...
Rapid Communications in Mass Spectrometry.  22 (2008)  3 - p. 321-329 , 2008
Link: https://doi.org/10.1002/..
 
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12

Metabolism of androsta‐1,4,6‐triene‐3,17‐dione and detectio..:

Parr, Maria K. ; Fußhöller, Gregor ; Schlörer, Nils...
Rapid Communications in Mass Spectrometry.  23 (2008)  2 - p. 207-218 , 2008
Link: https://doi.org/10.1002/..
 
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13

Steroidal isomers with uniform mass spectra of their per-TM..:

Parr, Maria K. ; Zapp, Josef ; Becker, Michael...
Steroids.  72 (2007)  6-7 - p. 545-551 , 2007
Link: https://doi.org/10.1016/..
 
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14

Metabolism of 4-hydroxyandrostenedione and 4-hydroxytestost..:

Kohler, Maxie ; Parr, Maria K. ; Opfermann, Georg...
Steroids.  72 (2007)  3 - p. 278-286 , 2007
Link: https://doi.org/10.1016/..
 
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15

Identification of the aromatase inhibitors anastrozole and ..:

Mareck, Ute ; Geyer, Hans ; Guddat, Sven...
Rapid Communications in Mass Spectrometry.  20 (2006)  12 - p. 1954-1962 , 2006
Link: https://doi.org/10.1002/..
 
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