四酸敞口-低温蒸干-原子荧光光谱法测定地球化学样品中的硒  

Determination of selenium in geochemical samples by atomic fluorescence spectrometry with tetra acid exposure-low temperature evaporation

作　　者：刘金龙[1] 王艳超[1] 张霞[1] Liu Jinlong;Wang Yanchao;Zhang Xia(Geological Institute of China Chemical Geology and Mine Bureau,Beijing,100013,China)

机构地区：[1]中化地质矿山总局地质研究院,北京100013

出　　处：《化工矿产地质》2021年第3期264-268,共5页Geology of Chemical Minerals

基　　金：中国地质调查局项目江西赣南-福建浦城地区战略性萤石硼资源调查(DD20190816);内蒙古喀喇沁旗大西沟一带萤石矿资源调查项目(DD20160057-07)。

摘　　要：本文采用HCl-HNO3-HClO4-HF四酸敞口处理样品,低温蒸干,氢化物-原子荧光光谱法测定地球化学样品中的硒。该方法检出限为0.0043μg/g,相对误差范围为-7.27%~8.89%,加标回收率为94.5%~105%,相对标准偏差小于10%。该方法方便、快捷,适合大批量样品的检测。In this paper,HCl-HNO3-HClO4-HF acid was exposed to the samples,and the selenium in geochemical samples was determined by low temperature evaporation and atomic fluorescence spectrometry,the method detection limit of 0.0043 mu g/g,the accuracy of the relative error range of 7.27%~8.89%,standard addition recovery was 95%~105%,the precision of relative standard deviation was less than 10%,The method is convenient and rapid,and is suitable for the detection of large quantities of samples.

关 键 词：地球化学样品 硒 低温蒸干 氢化物-原子荧光光谱法 

分 类 号：O657.31[理学—分析化学]