Determinação direta de molibdênio em comprimidos polivitamínicos por voltametria em meio não aquoso

Química Nova

Alex M. De Almeida²  Luiz M. Aleixo¹  João Carlos De Andrade¹  Aline Renée Coscione¹ 

[1] ,Universidade Federal de Uberlândia Instituto de Química Uberlândia MG

关键词: molybdenum determination;    pharmaceuticals;    voltammetry;   

DOI  :  10.1590/S0100-40422006000100027

来源: SciELO

【 摘 要 】

Adsorptive stripping voltammetry carried out in a homogeneous ternary solvent composed of N,N-dimethylformamide, water and ethanol, with alpha-benzoinoxime (alphaBO) as the complexing agent for Mo(VI) and a 0.5 mol L-1 acetic acid - sodium acetate buffer as supporting electrolyte was successfully used for the determination of molybdenum in polyvitamin-polymineral tablets. Tablet samples were analyzed and the results were compared with those obtained both by graphite furnace atomic absorption and by recovery tests, with good correlations, indicating that this may be considered as an alternative procedure for routine determination of Mo(VI) in pharmaceutical samples.

【 授权许可】

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