硫磷混酸溶矿测定矿样中铝、铬方法研究

A STUDY ON THE METHOD OF AL,CR TESTING OF ORE SAMPLE BY S-P MIXED ACID SOLUTION

硫磷混酸溶矿分解,ICP-AES同时测定不同样品中铝、铬含量。样品分解完全,操作简便,检测快速,结果稳定,准确度高。铝、铬的检出限分别为0.0042μg/ml、0.0036μg/ml,RSD分别为0.33%、1.33%,回收率在97.8%～104%之间。

The ore is decomposed with S - P mixed acid. The A1 and Cr in sample are determined contemporaneously by ICP- AES. The sample is decomposed completely, operation simple and convenient, testing fast, result stable and precision high. The detection limit of Al, Cr is separately 0.0042μg/ml, 0. 0036μg/ml, RSD separately 0. 33% , 1.33% , recovery in 97.8% - 104%.