锑—对二甲氨基苯芴酮络合物的示波极谱测定

Catalytic Wave of Sb-dimethylamino Phenylfluorone and Its Application

本文对锑与对二甲氨基苯芴酮络合物的极谱行为进行了研究。在硫酸介质中,得到了一个灵敏的极谱波,其峰电位为-0.20伏特(饱和甘汞电极)。波形稳定,具有较好的选择性,经初步试验,认为此波与吸附有关。锑的浓度0.004-0.32微克/毫升范围内呈线性关系。

A sensitive polarographic catalytic wave of Sb-dimethylamino phenylfluo-rone complex is obtained in sulphuric acid medium within the concentration range of 0.1-0.6N.About 40 kinds of metals ions do not interfere.F^(-),EDTA and NO_(3)^(-) interfere seriously.The method permits to determine 0.004-0.32μg/ml of antimony,The wave peak appears at-0.20 volt.