改造的平面光栅直读光谱仪在测定化探样品中银硼锡元素的应用  

Application of Modified Plane Grating Direct-Reading Spectrometer in Determination of Silver,Boron and Tin in Geochemical Samples

作　　者：黄劲 朱亮 何树艳 

机构地区：[1]新疆地矿局第一区域地质调查大队实验室,新疆乌鲁木齐830013

出　　处：《分析测试技术与仪器》2016年第3期135-139,共5页Analysis and Testing Technology and Instruments

摘　　要：平面光栅摄谱仪是地球化学普查样品中,测定银、硼、锡等元素常用的仪器.为提高分析效率和质量,2015年我单位将二米平面光栅摄谱仪改造为CCD-Ⅰ型平面光栅直读光谱仪.改造后的仪器检测限为Ag:0.013μg/g,Sn:0.43μg/g,B:0.71μg/g.精密度(RSD%,n=12)均小于10%,测定国家一级标准物质结果与标准值相符,完全满足地球化学普查样品中银、硼、锡等元素的分析要求.Plane grating spectrograph is commonly used in the determination of silver （Ag）, boron （B） and Tin （Sn） ingeochemical samples. In this work, a CCD-Ⅰplane grating direct-reading spectrometer has been successfully developed toreplace the two-meter plane grating spectrograph so as to improve the efficiency and quality of analysis. The detection limitsof the updating instrument for Ag, B and Sn were 0. 013,0. 71 and 0. 43 μg / g, respectively. The relative standarddeviations （RSDs n = 12） were less than 10%. The analytical accuracy was validated by the national standards and theresults are in agreement with the certified values. The proposed method can meet the requirements for the determination ofAg, B and Sn in geochemical samples.

关 键 词：平面光栅直读光谱仪 垂直电极 化学普查样品 

分 类 号：O657.7[理学—分析化学]