Direct determination of molybdenum in polyvitaminic tablets by voltammetry in non-aqueous media

Quimica nova

Coscione, Aline Renée¹  Aleixo, Luiz M.¹  Andrade, João Carlos de¹  Almeida, Alex M. de² 

[1] Universidade Estadual de Campinas, Campinas;Universidade Federal de Uberlândia, Uberlândia

关键词: molybdenum determination;    pharmaceuticals;    voltammetry.;   

DOI  :  10.1590/S0100-40422006000100027

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

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

【 授权许可】

CC BY