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本工作建立了ICP／MS准确测量单元素标准溶液Ph，Cd，Mg浓度和Ph，Cd，Mg，Fe单元素标准溶液中杂质元素的方法。通过化学计量学准确配制工作标准，分析过程中严格控制操作程序，测量单元素标准溶液浓度的精度优于1．5％。测量了标准溶液中的56种金属杂质元素，方法准确可靠。
In this work, ICP / MS was established to accurately measure the concentrations of Ph, Cd and Mg in single element standard solution and the impurity elements in single element standard solution of Ph, Cd, Mg and Fe. Accurate preparation of work standards by stoichiometry, rigorous control of the operating procedures in the analysis, and measurement of single element standard solution concentrations with accuracies of better than 1.5%. 56 kinds of metal impurity elements in the standard solution were measured, the method is accurate and reliable.