Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Frans Delbeke"'
Publikováno v:
Forensic Toxicology. 30:106-113
A simple and robust liquid chromatographic-tandem mass spectrometric method was developed and validated for the direct quantification of the structural isomers morphine-3-glucuronide (M3G), morphine-6-glucuronide (M6G), and morphine in urine. Method
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f16f2bd0d9fd839c0c844f8c42d164d4
https://doi.org/10.1007/s11419-012-0135-8
https://doi.org/10.1007/s11419-012-0135-8
Quantitative detection of inhaled formoterol in human urine and relevance to doping control analysis
Publikováno v:
Drug Testing and Analysis. 4:449-454
Formoterol is a frequently prescribed β2-agonist used for the treatment of asthma. Due to performance-enhancing effects of some β2-agonists, formoterol appears on the prohibited list, published by the World Anti-doping Agency (WADA). Its therapeuti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dddf182f42d653b8a2d514b29ae9a0c0
https://doi.org/10.1002/dta.418
https://doi.org/10.1002/dta.418
Publikováno v:
Clinical Endocrinology. 75:134-140
Context Until now, the testosterone/epitestosterone (T/E) ratio is the main marker for the detection of testosterone (T) misuse in athletes. As this marker can be influenced by a number of confounding factors, additional steroid profile parameters in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a89a37ac84332caec2aa32ab17af338
https://doi.org/10.1111/j.1365-2265.2011.03992.x
https://doi.org/10.1111/j.1365-2265.2011.03992.x
Publikováno v:
Journal of Chromatography A. 1218:3306-3316
The use of performance enhancing drugs in sports is prohibited. For the detection of misuse of such substances gas chromatography or liquid chromatography coupled to mass spectrometry are the most frequently used detection techniques. In this work th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51b9d834369ceca48f05da59985712da
https://doi.org/10.1016/j.chroma.2010.09.082
https://doi.org/10.1016/j.chroma.2010.09.082
Publikováno v:
Analytical and Bioanalytical Chemistry. 401:421-432
This paper reviews the prevalence of legal and illegal stimulants in relation to doping-control analysis. Stimulants are among the oldest classes of doping agents, having been used since ancient times. Despite the ease with which they can be detected
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17bfbf62daae01db15c06c477747bcd6
https://doi.org/10.1007/s00216-011-4863-0
https://doi.org/10.1007/s00216-011-4863-0
Publikováno v:
Rapid Communications in Mass Spectrometry. 24:1133-1141
An accurate and precise method for the quantification of 11-nor-Delta(9)-tetrahydrocannabinol-9-carboxylic acid (THCA) in urine by liquid chromatography/tandem mass spectrometry (LC/MS/MS) for doping analysis purposes has been developed. The method i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b12814f3afce7c58816fbb4ec6281631
https://doi.org/10.1002/rcm.4499
https://doi.org/10.1002/rcm.4499
Autor:
Geert Leroux-Roels, Oscar J. Pozo, Frans Delbeke, Leen Lootens, Philip Meuleman, Peter Van Eenoo, Pieter Van Renterghem
Publikováno v:
Drug Testing and Analysis. 1:531-537
Anabolic androgenic steroids are considered to be doping agents and are prohibited in sports. Their metabolism needs to be elucidated to allow for urinary detection by gas chromatography-mass spectrometry (GC-MS) or liquid chromatography-tandem mass
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34c6a2dfd0bada12cfb1460d9302e95a
https://doi.org/10.1002/dta.67
https://doi.org/10.1002/dta.67
Autor:
Félix Hernández, Leen Lootens, Koen Deventer, Peter Van Eenoo, Oscar J. Pozo, Philip Meuleman, Juan V. Sancho, Geert Leroux-Roels, Frans Delbeke, Susana Grimalt
Publikováno v:
Steroids. 74:837-852
The applicability of LC-MS/MS in precursor ion scan mode for the detection of urinary stanozolol metabolites has been studied. The product ion at m/z 81 has been selected as specific for stanozolol metabolites without a modification in A- or N-rings
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ee41e1858076499ecd945a817e1316d
https://doi.org/10.1016/j.steroids.2009.05.004
https://doi.org/10.1016/j.steroids.2009.05.004
Autor:
Philip Meuleman, Peter Van Eenoo, Frans Delbeke, Oscar J. Pozo, Leen Lootens, Geert Leroux-Roels
Publikováno v:
Clinical Chemistry. 55:1783-1793
Background: Adequate detection of designer steroids in the urine of athletes is still a challenge in doping control analysis and requires knowledge of steroid metabolism. In this study we investigated whether uPA+/+-SCID mice carrying functional prim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8c0df7b8b680b3e06da091b21a42c4e
https://doi.org/10.1373/clinchem.2008.119396
https://doi.org/10.1373/clinchem.2008.119396
Autor:
Frans Delbeke, Wim Van Thuyne, Maria Kristina Parr, Peter Van Eenoo, Oscar J. Pozo, Juan V. Sancho, Koen Deventer, Leen Lootens, Félix Hernández, Wilhelm Schänzer, Philip Meuleman, Geert Leroux-Roels
Publikováno v:
Drug Metabolism and Disposition. 37:2153-2162
The misuse of the anabolic steroid methyltestosterone is currently routinely monitored in doping control laboratories by gas chromatography-mass spectrometry (GC-MS) of two of its metabolites: 17alpha-methyl-5beta-androstane-3alpha,17beta-diol and 17
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3cb84bd011decbbf057c1f501bebaa19
https://doi.org/10.1124/dmd.109.028373
https://doi.org/10.1124/dmd.109.028373