电感耦合等离子体光谱法测定铜冶炼烟尘中锌

本实验介绍了电感耦合等离子体光谱法测定铜冶炼烟尘中锌含量的分析方法。针对样品碳，硅含量高的特点，有针对性的研究了样品的消解方法，确定采用盐酸、硝酸、氢氟酸、高氯酸对铜冶炼烟尘样品进行消解。同时进行了干扰试验，确定样品中高含量的铜，铅，砷等对样品测定结果没有影响。并对仪器的工作参数进行了优化。方法检出限为为0.011 mg/L，测定下限为0.019 mg/L，3个样品的相对标准偏差在0.54%~0.92%之间,加标回收率在96%~101.14%之间。该方法样品消解完全，流程短，操作简单，快速，测定准确度高，可以满足铜冶炼烟尘中锌含量的测定。

Measurement of Zn in Copper Smelting Dust with ICP-AES

This paper introduces the analysis method of zinc content in copper smelting dust by inductively coupled plasma spectrometry. According to the high content of carbon and silicon in the sample, the digestion method of the sample was studied. Hydrochloric acid, nitric acid, hydrofluoric acid and perchloric acid were used to digest the copper smelting dust sample. Interference test was carried out to confirm that the high content of copper, lead and arsenic in the sample had no effect on the determination results.The working parameters of the instrument were optimized. The detection limit of the method is 0.011 mg / L, the lower limit is 0.019 mg / L, the relative standard deviation of the three samples is between 0.54% ~ 0.92%, and the recovery is between 96%~ 101.14%. This method has the advantages of complete digestion, short process, simple operation, high accuracy and can meet the requirement of zinc content determination in copper smelting dust.