铅锑合金的预处理及锑、硒的ICP-AES法测定

用“锯末法”从铅锑合金锭中取样，并用硝酸和酒石酸的混合溶液溶解样品，再经过适当的处理后，用ICP-AES法测定样品溶液中锑和硒的含量。结果表明，锑的加标回收率为96.2%;硒的加标回收率为92.1%，11次测定的RSD(n=11)小于3.56%。方法操作方便，分析速度快，结果准确。方法已用于铅锑合金产品中锑、硒的测定，取得满意的结果。

Pretreatment of Lead-Antimony Alloy and Determination of Antimony and Selenium Using ICP-AES

The sample was obtained from original sample using "sawing method" and was dissolved with a mixed solvent of nitric acid and tartaric acid. After the sample solution was pretreated with a series of methods, Sb and Se were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). The results show that the recovery of standard addition of Sb was 96.2% and that of Se was 92.1%, and that the relative standard deviations (n=11) were smaller than 3.56%. The method is efficient, accurate and easy to operate, and has been applied to the determination of Sb and Se in Pb-Sb alloy products with satisfactory results.