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用ICP-MS测定碳酸锂中微量杂质元素的基本条件,确定了合适的样品处理、分解方法,研究了元素间的干扰。方法检出限K 0.020μg/g,Na 0.025μg/g,Ca 0.009μg/g,Mg 0.010μg/g,SO42-0.050μg/g;加标回收率在94.0%—102.0%,测定精密度RSD 0.5%—2.1%,方法简单、快速、准确、实用。
ICP-MS determination of trace elements in lithium carbonate, the basic conditions to determine the appropriate sample processing and decomposition methods to study the interference between elements. The detection limits K 0.020μg / g, Na 0.025μg / g, Ca 0.009μg / g, Mg 0.010μg / g, SO42-0.050μg / g; the recoveries were 94.0% -102.0% 0.5% -2.1%, the method is simple, fast, accurate and practical.