氢化物发生-原子荧光光谱法测定铜精矿中的砷、锑和铋

Determination of As,Sb and Bi in Copper Concentrates by Hydride Generation Atomic Fluorescence Spectrometry

建立了氢化物发生-原子荧光光谱法同时测定铜精矿中砷、锑、铋的方法,采用了主量元素匹配法来消除基体干扰,优化了反应体系的酸度、还原剂浓度等条件进行了优化。砷、锑、铋的浓度在1—200μg·L^(-1)范围内与荧光强度呈线性关系。方法回收率为92%—101%,相对标准偏差为2.7%—5.5%。

As,Sb and Bi in copper concentrates were determined by hydride generation atomic fluorescence spectrometry. The major element matching method was Used to eliminate matrix interference. Experimental conditions including acid degree and reducing agent concentration were optimized. Good linearilities were obtained for As,Sb,Bi in the concentration range of 1-200μg·L^-1. Recoveries from 92% to 101% were obtained with relative standard deviation of 2.7%-5.5%.