摘要
采用铜试剂分离杂质 ,偶氮氯膦 - 3作显色剂快速测定硫酸稀土复盐母液中稀土的总量。该方法相对标准偏差为 3 68%,回收率为 98 96%～ 10 1.2 1%。
Separated out impurities from the rare earthy content in mother liquor of complex salt rate earth sulfate with copperon, and taked chlorophosphonazo-3 as color reagent, the total contents of rare earth were determined by spectrophotometry with recovery ,98.96%～102.21%, and RSD,3.68%.
