建立了火焰原子吸收光谱法测定铜锍中银的分析方法,样品经硝酸、高氯酸溶解,在15 ％盐酸介质中,采用原子吸收光谱法测定银.标准曲线相关系数为0.999 9,线性范围为20.0 ～300.0 g/t,相对标准偏差(RSD)2.02 ％～3.07 ％,加入标准物质回收率为99.3 ％～103.1 ％.该方法简单快速、准确可靠,适用于铜锍中银量的测定.
Flame atomic absorption spectrometry is established to determine silver in copper matte.The samples are dissolved by nitric acid and perchloric acid,and in 15 ％ hydrochloric acid medium,silver is determined by atomic absorption spectrometry.The correlation coefficient of the standard curve is 0.999 9,the linear range is 20.0-300.0 g/t,the relative standard deviation is 2.02％ - 3.07 ％ . and the recovery rate of standard substance is 99.3％- 103.1％.The method is simple ,fast , accurate and reliable,and is suitable for the determination of silver in copper matte.
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