Blister copper sample were dissolved in mixed acid of hydrochloric acid and nitric acid. Gold and silver content was determined directly by inductively coupled plasma optical emission spectrometry (ICPOES) by using 242. 794 nm and 328. 068 nm as analyzing spectral line. Investigation of the effects of matrix and co-existing ions were studied. It was shown that copper had certain effect on the determination, but can be removed by matrix-matching, while other impurity elements had no influence. The method has been applied to the blister copper and the results are consistent with the results by the method of YS/T521. 2-2009, with the relative standard deviations of gold and silver (RSD, n = 12) smaller than 1. 9 % and 1.1% respectively. In addition, the recoveries of testing elements were between 95 % and 105 %.%粗铜样品用盐酸和硝酸混合酸溶解,选择242.794 nm和328.068 nm的光谱线分别作为金和银的分析线,直接用电感耦合等离子体发射光谱法(ICP-AES)同时测定了粗铜中金和银含量.考察了基体效应和共存离子等因素对测定的影响.实验表明,铜存在基体效应对测定有影响,但可以采用基体匹配的方法消除,粗铜中的其他杂质元素对测定没有影响.用本法测定了粗铜中的金和银含量,测定值与行业标准方法(YS/T521.2- 2009)的测定值相符,金、银测定结果的相对标准偏差分别小于1.9％和1.1％(n=12),加标回收率在95％～105％之间.
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