电感耦合等离子体原子发射光谱(ICP-AES)法测定铅精矿中的锑

Determination of Antimony in Insoluble Lead Concentrate by Inductively Coupled Plasma-Atomic Emission Spectrometry(ICP-AES)

建立了电感耦合等离子体原子发射光谱（ICP—AES）法测定铅精矿中Sb元素的分析方法。实验中对难溶解的样品，确定了采用硝酸、硫酸、酒石酸溶样的方法，并选择了最佳工作条件。实验结果表明检出限为0．005μg／mL，加标回收率为99．0％～102％，相对标准偏差为1．5％～3．2％。该方法快速准确，适用于铅精矿难溶解样品中锑含量的测定。

A method for determination of antimony in insoluble lead concentrate by ICP-AES was established in this article. For the samples, which were difficult to be dissolved, nitric acid, sulfuric acid and tartaric acid were determined to be used for sample dissolution treatment and the optimal conditions for determination were also found. The results indicated that the detection limit of antimony was 0. 005 μg/mL,with the recoveries of 99.0%--102% and the relative standard deviations of 1.5%--3.2%. The method is precise and rapid so that it can be used in the determination of antimony in insoluble lead concentrate.