溴酸钾滴定法测定铜冶炼烟尘中的砷含量

Determination of Arsenic Content in Copper Smelting Dust by Potassium Bromate Titration

研究了测定铜冶炼烟尘中砷含量的溴酸钾滴定方法。对测定体系中的各共存元素进行研究,探讨了测定方法的各项测定条件,方法的相对标准偏差RSD为0.13%~0.61%,样品加标回收率在99.5%~100%,方法精密度高,准确度好,适用于铜冶炼烟尘中砷含量为1.00%~50.00%的测定。

In this paper,the potassium bromate titration method for the determination of arsenic in copper smelting dust was studied.The coexisting elements in the determination system were studied experimentally.The determination conditions of the method were discussed.The relative standard deviation of the method is 0.13%—0.61%,and the recovery of the sample is 99.5%—100%.The method has high precision and accuracy.It is suitable for the determination of arsenic content in copper smelting dust from 1.00%to 50.00%.