ICP-AES测定铜精矿中的Ag含量及与AAS的比较  

Determination of Ag in Copper Concentrates by ICP-AES and Its Comparison with AAS

作　　者：何素芳[1] 刘春侠[1] 贺与平[1] 单云[1] 熊敏[1] 罗永明[2] 

机构地区：[1]昆明理工大学分析测试研究中心,昆明市学府路253号650093 [2]昆明理工大学环境科学与工程学院,昆明市学府路253号650093

出　　处：《光谱实验室》2012年第5期2728-2731,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：昆明理工大学分析测试研究中心科研基金(2008-03);云南省科技平台项目(2010DH025)

摘　　要：铜精矿样品经盐酸、硝酸、氢氟酸、高氯酸分解完全后,用10%的盐酸溶液(V/V)定容至50mL容量瓶中,应用电感耦合等离子体-原子发射光谱法(ICP-AES)测定其中的银含量。该方法的加标回收率为95.4%—97.2%,相对标准偏差(RSD)为1.26%,线性范围宽,具有良好的准确性和精密度,测定结果与AAS法吻合。与AAS法相比较,ICP-AES法具有更宽的线性范围,受介质盐酸溶液浓度的影响较少,适合用来测定铜精矿中的Ag。The contents of Ag in copper concentrates,which was digested by HCl,HNO3,HF and HClO4,were determined by inductively coupled plasma-atomic emission spectrometry（ICP-AES） in 10% HCl solution（V/V）.The standard addition recovery was 95.4%—97.2%,and the relative standard derivation was 1.26%.This method shows wide linear range,good accuracy and precision,the results of determination are in agreement with those of AAS.Compared with AAS,ICP-AES has wider linear range,that was affected a little by the concentration of the medium HCl solution,and can determine the contents of Ag in copper concentrates quickly and correctly.

关 键 词：电感耦合等离子体-原子发射光谱法 铜精矿 银 

分 类 号：O657.31[理学—分析化学]