| 氢化物发生—原子荧光光谱法测定煤样中的硒 |
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| 引用本文： | 梁立娜 何滨 等. 氢化物发生—原子荧光光谱法测定煤样中的硒[J]. 岩矿测试, 2001, 20(1): 31-33 |
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| 作者姓名： | 梁立娜 何滨 等 |
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| 作者单位： | 中国科学院生态环境研究中心, |
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| 基金项目： | 国家自然科学基金资助项目(29825114) |
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| 摘 要： | 采用氢化物发生原子荧光光谱法测定了煤样中的总Se。煤样选用高压闷罐强酸消解的方法进行处理，所得消解液经6mol/L HCl将Se（Ⅵ）还原为Se（Ⅳ），然后进行测定。标准工作曲线的线性范围为0－400μg/L Se，检测限为0.4μg/L Se。用标准参考物质煤飞灰对方法进行了验证，所得总Se含量与标准值相符，对ω为10^-6级Se的4次测定，RSD≤4.5％。
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| 关 键 词： | 氢化物发生－原子荧光 硒 煤样 飞灰 |
| 文章编号： | 0254-5357(2001)01-0031-03 |
| 修稿时间： | 2000-05-26 |
Determination of Total Selenium in Coals by Hydride Generation Atomic Fluorescence Spectrometry |
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| LIANG Li n,HE Bin,JIANG Gui bin. Determination of Total Selenium in Coals by Hydride Generation Atomic Fluorescence Spectrometry[J]. Rock and Mineral Analysis, 2001, 20(1): 31-33 |
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| Authors: | LIANG Li n HE Bin JIANG Gui bin |
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| Affiliation: | LIANG Li na,HE Bin,JIANG Gui bin * |
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| Abstract: | This paper proposed a sensitive and simple method for the determination of total selenium in coal samples by hydride generation atomic fluorescence spectrometry (HG-AFS). The detection limit was 0.40μg/L with linear range of 0～400μg/L for Se. The method has been validated by analysis of standard reference coal fly ash with precision of less than 4.5% RSD(wSe=10-6,n=4) and has been successfully used for the determination of total selenium in coal samples from different sampling sites. |
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| Keywords: | hydride generation atomic fluorescence spectrometry selenium coal |
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