Stability of 19-norandrosterone and 19-noretiocholanolone glucuronide in urine under various storage conditions

The International Olympic Committee (IOC) has ruled that 19-norandrosterone should be quantified if present in low concentrations in urine of sport competitors. The question, however, is how stable is 19-norandrosterone in urine. In the light of this IOC ruling it is therefore important to know if t...

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Vydáno v:South African journal of sports medicine Ročník 15; číslo 2; s. 14 - 17
Hlavní autor: Van Der Merwe, P.J. & Grobbelaar, E.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Sandton South African Sports Medicine Association 20.12.2003
Health and Medical Publishing Group
Témata:
accuracy
Bacterial degradation
Chromatography
Derivatisation
Freeze and thaw stability
Hydrolysis
Liquid-liquid extraction
Long-term stability in freezer
Sample storage
Short term stability at room temperature
Solid phase extraction
Sports medicine
Testing method
ISSN:1015-5163, 2078-516X
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Shrnutí:The International Olympic Committee (IOC) has ruled that 19-norandrosterone should be quantified if present in low concentrations in urine of sport competitors. The question, however, is how stable is 19-norandrosterone in urine. In the light of this IOC ruling it is therefore important to know if the concentration of 19-norandrosterone can change during the transportation process of urine samples to the laboratory or during the handling and storage of the samples in the laboratory.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:1015-5163
2078-516X
DOI:10.17159/2078-516X/2003/v15i2a217