Results 141 to 150 of about 3,507,248 (152)

Application of online two‐dimensional high‐performance liquid chromatography as purification procedure to determine the origin of 19‐norandrosterone in urine by gas chromatography–combustion–isotope ratio mass spectrometry

Drug Testing and Analysis, 2021
Chao Wen
exaly  

Hydroboration—V : A new synthesis of androsterone and 19-norandrosterone☆☆☆

, 1964
L. Caglioti, G. Cainelli*, G. Maina, A. Selva   +3 more
semanticscholar   +1 more source

Profiling 19‐norsteroids. II—tandem mass spectrometric characterization of the heptafluorobutyryl ester and pentafluorobenzyloxime heptafluorobutyryl ester derivatives of 19‐norandrosterone using collisionly activated dissociation

, 1995
D. Boer, S. N. Bensink, A. R. Borggreve, R. D. Ooijen, R. Maes   +4 more
semanticscholar   +1 more source

Revisiting the metabolism of 19-nortestosterone using isotope ratio and high resolution/high accuracy mass spectrometry.

Journal of Steroid Biochemistry and Molecular Biology, 2016
T. Piper, W. Schänzer, M. Thevis
semanticscholar   +1 more source

Norandrosterone and noretiocholanolone concentration before and after submaximal standardized exercise.

International Journal of Sports Medicine, 2004
B. de Geus, F. Delbeke, R. Meeusen, P. Van Eenoo, K. D. De Meirleir, B. Busschaert   +5 more
semanticscholar   +1 more source

Identification of endogenous 19-norandrosterone in human urine

1999
Le Bizec, Bruno, Gaudin, Isabelle, Pohu, A., Monteau, Fabrice, André, François   +4 more
openaire   +1 more source

Formation of 19-norsteroids by in situ demethylation of endogenous steroids in stored urine samples.

Steroids, 2005
J. Grosse, P. Anielski, P. Hemmersbach, H. Lund, R. Mueller, C. Rautenberg, Detlef Thieme   +6 more
semanticscholar   +1 more source

Urinary metabolic profile of 19-norsteroids in humans: glucuronide and sulphate conjugates after oral administration of 19-nor-4-androstenediol.

Rapid Communications in Mass Spectrometry, 2008
S. Torrado, M. Roig, M. Farré, J. Segura, R. Ventura   +4 more
semanticscholar   +1 more source

Determination of urinary norandrosterone excretion in females during one menstrual cycle by gas chromatography/mass spectrometry

Biomedical Chromatography, 2006
exaly  

19-Norandrosterone origin: a simple procedure for GC/C/IRMS sample preparation by HPLC

2011
de la Torre X, Colamonici C, Curcio D, Molaioni F, Pizzardi M, Castrignanò E, BOTRE', Francesco   +6 more
openaire   +1 more source