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Dane publikacji

DETECTION OF DOPING SUBSTANCES IN NUTRITIONAL AND DIETARY SUPPLEMENTS

Rozdział
Marzena Wójtowicz [1] , Anna Jarek [1] , Marta Żmudzińska [2] , Katarzyna Chajewska [1] , Jacek Namiesnik [2] , Dorota Kwiatkowska [1]
2015 angielski
Liczba arkuszy: 0,1
Link do publicznie dostępnego pełnego tekstu
Cechy publikacji
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  • Abstrakt
  • Zrecenzowana naukowo
  • Konferencyjna
Dyscypliny naukowe
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Chemia
Słowa kluczowe
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Dane konferencji
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  1. EUROANALYSIS XVIII, 18th edition of EuroAnalysis the European Conference on Analytical Chemistry
  2. 2015-09-06 - 2015-09-10
  3. Bordeaux, Francja
Abstrakty ( angielski )
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The wide range of nutritional and dietary supplements, their advertised properties and a supplement-purchasing facility have a significant influence on their popularity. The use of supplements in sport was increasing in the last several years. Unfortunately, the problem of supplements’ contamination by doping agents is still present and may cause positive anti-doping results. The List of Prohibited Substances and Methods established by the Word Anti-Doping Agency is open ended. It means that the substances which have similar chemical structure or similar biological effect(s) to several substance classes are also banned. According to the statistic figures, anabolic agents and stimulants are two substance classes related to the largest number of positive anti-doping results in the last four years. The gas chromatography-mass spectrometry (GC-MS) has been applied to the detection of anabolic agents and stimulants in supplements. Two screening methods enabled us to detect 39 anabolic agents and 44 stimulants. Both of them have been validated and acceptable validation parameters have been received (RSD below 4.9% and LOD of the range of 0.5 - 5.0 μg·g -1 in most substance cases). Two simple GC-MS methods for detection of a wide range of doping agents have been proposed. Both methods have been validated and applied to analyze 106 Supplement samples. The received results have shown that both, the lack of labeling of all components on the supplement label and variety in concentrations of prohibited substances found in supplements, cause that the use of supplements by athletes is very risky of violating anti-doping rules.
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