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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 |
投稿时间:2016-06-27 修订日期:2016-09-12 |
DOI:10.16495/j.1006-3757.2016.03.002 |
中文关键词: 平面光栅直读光谱仪 垂直电极 化学普查样品 |
英文关键词:plane grating spectrometer vertical electrode chemical census sample |
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中文摘要: |
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:0.013 μg/g,Sn:0.43 μg/g,B:0.71 μg/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. |
英文摘要: |
Plane grating spectrograph is commonly used in the determination of silver (Ag), boron (B) and Tin (Sn) in geochemical samples. In this work, a CCD-Ⅰplane grating direct-reading spectrometer has been successfully developed to replace the two-meter plane grating spectrograph so as to improve the efficiency and quality of analysis. The detection limits of the updating instrument for Ag, B and Sn were 0.013,0.71 and 0.43 μg/g, respectively. The relative standard deviations (RSDs n = 12) were less than 10%.The analytical accuracy was validated by the national standards and the results are in agreement with the certified values.The proposed method can meet the requirements for the determination of Ag, B and Sn in geochemical samples. |
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