Diana Brito da Justa Neves

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Caffeine is one of the most consumed stimulants in the world, and is a frequent ingredient of dietary supplements. The aims of this work were to validate a GC-MS method for the quantitation of caffeine and identification of other substances in supplements, mainly weight loss products, and to estimate the caffeine intake by consumers. Sample preparation(More)
The use of counterfeit or substandard medicines can have an important health impact, resulting in therapeutic failure, be toxic or even cause death. Anabolic steroids are a frequent target for counterfeiters worldwide, being the second most frequent counterfeited class in Brazil. The aims of this work were to optimize and validate a GC-MS method for the(More)
OBJECTIVE To evaluate the levels of antimony in plasma and skin of patients being treated with pentavalent antimonials (Glucantime) and their relationship with side effects. METHODS We evaluated 19 patients treated endovenously at the conventional dose (20 mg Sb(v)/kg/day), two at a smaller dose (5 mg Sb(v)/kg/day) and three treated intralesionally (up to(More)
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