| X射线荧光光谱法测试重晶石中的多元素 |
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| 引用本文： | 周国兴,赵恩好,岳明新,曹丹红,肖刚,张泉.X射线荧光光谱法测试重晶石中的多元素[J].地质与资源,2014,23(3):292-295. |
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| 作者姓名： | 周国兴 赵恩好 岳明新 曹丹红 肖刚 张泉 |
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| 作者单位： | 沈阳地质矿产研究所/中国地质调查局 沈阳地质调查中心, 辽宁 沈阳 110032 |
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| 摘 要： | 采用玻璃熔片法制样,建立了重晶石中多元素X射线荧光光谱分析方法.准确称取待测样品0.5000 g,X射线荧光专用熔剂5.000 g;二者混合后,通过高频熔样机在1150℃进行熔片处理8 min;将最终得到的样片放入干燥器中冷却至室温,然后准确称取玻璃片质量;上机测试,所得到的数据为该元素在玻璃片中的含量;通过换算最终得到实际样品中的该元素含量.使用理论α系数法和经验系数法相结合来回归校正共存元素间的吸收增强效应.本方法对于重晶石中各元素的测试相对标准偏差处于0.2%~4.7%之间,方法检出限在3.3×10-6~170.6×10-6之间.测试数据通过与国家标准物质比对,结果合理.
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| 关 键 词： | X射线荧光光谱 玻璃熔片法 理论α系数法 重晶石 高频熔样机 |
| 收稿时间： | 2013-06-21 |
APPLICATION OF X-RAY FLUORESCENCE SPECTROMETRY IN THE MULTI-ELEMENT TEST OF BARITE |
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| ZHOU Guo-xing,ZHAO En-hao,YUE Ming-xin,CAO Dan-hong,XIAO Gang,ZHANG Quan.APPLICATION OF X-RAY FLUORESCENCE SPECTROMETRY IN THE MULTI-ELEMENT TEST OF BARITE[J].Geology and Resources,2014,23(3):292-295. |
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| Authors: | ZHOU Guo-xing ZHAO En-hao YUE Ming-xin CAO Dan-hong XIAO Gang ZHANG Quan |
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| Institution: | Shenyang Institute of Geology and Mineral Resources, CGS, Shenyang 110032, China |
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| Abstract: | With sampling preparation by glass fusion, an X-ray fluorescence spectrum（XRFS） analysis method is established for multi-element test in barite. Preparing 0.5000 g of sample for test, mixing it with 5.000 g of special flux for XRFS, and melting the mixture in the high-frequency bead maker in 1150 ℃ for 8 minutes, then cooling the sample to room temperature in dryer, finally weighing the accurate mass of the glass. With computer test, to get the data of the element contents in the glass. The actual element contents of the sample is finally obtained by conversion. The theoretical α-coefficient method and empirical coefficient method are adopted for regression calibration of the absorption enhancement effects between the coexisting elements. The tested relative standard deviation of this method for each element in barite ranges from 0.2% to 4.7%, with a detection limit between 3.3×10^-6and 170.6×10^-6. A reasonable result is obtained for the tested data compared with the national standard material. |
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| Keywords: | X-ray fluorescence spectrum glass fusion method theoretical α-coefficient method barite high-frequency bead maker |
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