改进的锍镍试金前处理方法在测定难溶矿石中铂族元素的应用
Journal: Geological and Mineral Surveying and Mapping DOI: 10.32629/gmsm.v9i1.2395
Abstract
铂族元素(钌、铑、钯、锇、铱、铂)作为战略性贵金属,在地壳中丰度极低、分布不均且具有明显粒金效应,难溶矿石中铂族元素的准确测定是岩矿测试领域的技术难题。传统锍镍试金前处理方法存在流程空白高、锍扣处理繁琐、杂质干扰严重、挥发性元素损失等问题,制约了测定精度与效率。本文提出一种改进的锍镍试金前处理方法,通过优化试金配料比例、引入羰基铁粉实现锍扣自粉化、提纯试剂降低空白、优化酸溶与杂质分离流程,结合动能歧视(Kinetic Energy Discrimination,KED)模式,建立了难溶矿石中铂族元素的测定体系。
Keywords
改进锍镍试金；前处理方法；难溶矿石；铂族元素；ICP-MS
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