全谱交直流电弧发射光谱仪测定多金属矿中微量锡  

Determination of Trace Tin in Polymetallic Ore on Full Spectrum AC/DC Arc Emission Spectrometer

作　　者：孙慧莹[1] 李小辉[1] 郝胜涛[1] 王亚萍 于亚辉[1] SUN Hui-ying;LI Xiao-hui;HAO Sheng-tao;WANG Ya-ping;YU Ya-hui(Henan Rock Mineral Testing Center,Zhengzhou 450012,China;Henan Provincial Bureau of Geological and Mineral Exploration and Development,No.2 Geological and Mineral Survey Institute,Zhengzhou 450001,China)

机构地区：[1]河南省岩石矿物测试中心,河南郑州450012 [2]河南省地质矿产勘查开发局第二地质矿产调查院,河南郑州450001

出　　处：《分析测试技术与仪器》2021年第2期121-126,共6页Analysis and Testing Technology and Instruments

基　　金：省财政地质科研项目(豫国土资发[2018]98号-10)。

摘　　要：建立了全谱交直流电弧发射光谱仪直接测定多金属矿中锡的方法.以Ge为内标,K_(2)S_(2)O_(7)、Al_(2)O_(3)、KI、C粉为缓冲剂,缓冲剂与样品1∶1混合进行测定.方法检出限为0.16μg/g,精密度为4.43%~7.38%,加标回收率为91.4%~109.0%.使用方法测定国家一级标准物质,测定结果与标准值相符.方法简单、快捷,分析测试范围宽,能够满足多金属矿样品的分析要求.A method for the direct determination of trace tin in polymetallic ore on a full spectrum AC/DC arc emission spectrometer was set up.Ge was used as the internal standard,K_(2)S_(2)O_(7),Al_(2)O_(3),KI,C powder were used as the buffer,and the buffer were mixed with the sample at a ratio of 1∶1 for the determination.The detection limit of this method was 0.16μg/g,the precision was 4.43%~7.38%,and the recovery was 91.4%~109.0%.The method was used to determine the national first-level standard materials,and the result was in good agreement with the standard value.The method is simple,rapid,is suitable for a wide range of analysis and testing,and can meet the requirements of the analysis of polymetallic ore samples.

关 键 词：全谱交直流电弧发射光谱仪 多金属矿 锡 

分 类 号：O657.39[理学—分析化学]