ICP-AES法测定Pb基新合金中镧、钙、锡、钐量

Determination of La、Ca、Sn、Sm in Pb-new Alloy by ICP-AES

文章讨论了利用美国热电公司生产的全谱直读ICP光谱议，同时测定Pb基新合金中的La、Ca、Sn、Sm等元素含量的分析方法。对影响ICP分析可靠性的各种因素进行了考察，确定了合适的分析谱线和最佳工作条件。在此条件下测定，获得了满意结果。方法的检出限为0．013～0．084μg／mL，回收率为90．0％～100．8％，KSDi小于4．53％。

The paper describes the ICP-AKS method for the determination of La,Ca,Sn,Sm in Pb-new alloys.The optimal conditions of the determination are established. Under the conditions, satisfactory results can be achieved. The detection limits for 4 elements is in the range of 0. 013 - 0. 084 μg/mL.Recoveries of the elements are in the range of 90.0% - 100.8%.The elements have been determined with RSD〈 4.53%.