ICP-AES法测定金属硅中的Al、B、Ba、Ca、Cr、Cu、Fe、Mg、Mn、Ni、Sr、Ti、V和Zn杂质元素

Determination of Al,B,Ba,Ca,Cr,Cu,Fe,Mg,Mn,Ni,Sr,Ti,V and Zn Impurities in Silicon Metal by ICP-AES

本文提供了一种测定金属硅中B、Fe、Al、Ca、Mn等 14个杂质元素的ICP AES方法。在样品处理过程中 ,加入适量体积的甘露醇能够抑制B的挥发。用本方法测定了一个国家地球化学标准样 (GSR 4 ) 。

In this paper,an ICP AES method for determining Al,B,Ba,Ca ets impuries in silicon metal is described.The interference factors in the analysis of impurity elements in silicon metal has been studied.The problems of background interference,organic matter(mannitol)interference,major elements interference are discussed.In the procedure of sample preparation,a proper volume of mannitol solution was added to sample,and this can protect B from volatilization.The feasibility of the proposed method is evaluated by analyzing one national geochemical reference samples(GSR 4),The results are satisfactory.