阳极溶出伏安法同时测定高纯铟中的铅和镉

Simultaneoue determination of Pb and Cd in high pure In by anodic solving voltammetry

本文提出了一种在酒石酸铵—氨水体系中用阳极溶出伏安法同时测定高纯铟中痕量杂质铅和镐的新方法，工艺简单而且精密度高。不需预先和基体分离，在一定条件下对高纯铟样品进行测定．测定限铅可达1×10-1％．镉可达1×10－5％、铅、镉平均加标回收率均可达99％以上。

A new method of simultaneous determination for Pb and Cd by anodic solving voltammetry was studied in C4H12N2O6-NH4 OH solution The method has simple technology and high accuracy. It has been used for direct ditermination of Pb and Cd in in samples. The detection limit of Pb and Cd can both reach 1×10-5% o Their recoveries can both reach over 99%.