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- W2796592706 abstract "1,3-dimethylamylamine (DMAA) is an alkylamine with stimulating properties that has been used predominantly as an additive in dietary supplements. DMAA is mostly consumed by professional athletes, and several doping cases reported since 2008 led to its prohibition by the World Anti-Doping Agency (WADA) in 2010. Adverse effects have indicated DMAA toxicity, and there is few data regarding its safety, so it was banned by regulatory agencies from Brazil and the United States. Ambient ionization methods such as Direct Analysis in Real Time Tandem Mass Spectrometry (DART-MS/MS) are an alternative for dietary supplements analysis, because they enable the analysis of samples at atmospheric pressure in a very short time and with only minimal sample preparation. Therefore, the aim of this work was to develop a methodology by DART-MS/MS to detect the presence of DMAA, ephedrine, synephrine, caffeine, sibutramine, and methylphenidate in 108 dietary supplements seized by the Brazilian Federal Police (BFP). The results show that DART-MS/MS screening was successfully employed to simultaneously detect the six substances in casework samples with rapid and reliable results and with minimum sample preparation. DMAA was present in 20% of the seized dietary supplements, being more prevalent along with sibutramine and caffeine. Out of the 108 samples, almost 50% were positive for sibutramine and 10% for methylphenidate. It appears that even after prohibition, dietary supplements and weight-loss products containing DMAA are still being commercialized." @default.
- W2796592706 created "2018-04-24" @default.
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- W2796592706 date "2018-05-01" @default.
- W2796592706 modified "2023-09-27" @default.
- W2796592706 title "DART-MS/MS screening for the determination of 1,3-dimethylamylamine and undeclared stimulants in seized dietary supplements from Brazil" @default.
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- W2796592706 doi "https://doi.org/10.1016/j.forc.2018.03.005" @default.
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