钼蓝光度法测定纯钴中的硅

Photometric Determination of Silicon in Pure Cobalt

用钼蓝光度法测定了纯钴中微量硅，选择６５０ｎｍ为测定波长，可基本消除Ｃｏ（２＋），Ｎｉ（２＋）等的干扰。方法的回收率为９８．５％～１０２％，与溶剂萃取法的结果比较，本法更为简单易行。

The content of silicon in pure cobalt is determined with molybdenum blue spectrophotometric method,and the conditions for determination are established.The interferences of Co(2+)and Ni(2+)are eliminated by chosing 650 nm as the wavelength of determination.The rate of recovery of the method is 98.5%～102%.