| 富氧空气-乙炔火焰原子吸收光谱法测定地质样品中痕量铍 |
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| 引用本文： | 吴少尉,杨小秋,陈文武,杨明,汤志勇,金泽祥.富氧空气-乙炔火焰原子吸收光谱法测定地质样品中痕量铍[J].光谱学与光谱分析,2005,25(5):785-787. |
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| 作者姓名： | 吴少尉 杨小秋 陈文武 杨明 汤志勇 金泽祥 |
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| 作者单位： | 1. 中国地质大学材料科学与化学工程学院，湖北 武汉 430074
2. 湖北民族学院化学与环境工程学院，湖北 恩施 445000 |
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| 基金项目： | 国家地质调查局科技项目(DK0003048)资助 |
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| 摘 要： | 研究了用富氧空气-乙炔火焰原子吸收光谱法测定铍的分析方法。当空气流量为6.0 L·min-1，氧气流量为4.2 L·min-1，乙炔流量为7.4 L·min-1时铍有较高的吸光度。在2.5%的8-羟基喹啉介质中，能较好地消除基体干扰且有一定的增感作用。方法的检测限为0.006 μg·mL-1，测定精密度RSD为4.69％，测定地质标准物质中铍的结果与鉴定值吻合。
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| 关 键 词： | 富氧空气-乙炔火焰 原子吸收光谱法 地质样品 铍 |
| 文章编号： | 1000-0593(2005)05-0785-03 |
| 收稿时间： | 2003-12-19 |
| 修稿时间： | 2003年12月19 |
Determination of Trace Beryllium in Geological Samples by Oxygen Doped Air-Acetylene Flame Atomic Absorption Spectrometry |
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| WU Shao-wei,YANG Xiao-qiu,CHEN Wen-Wu,YANG Ming,TANG Zhi-Yong,JIN Ze-xiang.Determination of Trace Beryllium in Geological Samples by Oxygen Doped Air-Acetylene Flame Atomic Absorption Spectrometry[J].Spectroscopy and Spectral Analysis,2005,25(5):785-787. |
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| Authors: | WU Shao-wei YANG Xiao-qiu CHEN Wen-Wu YANG Ming TANG Zhi-Yong JIN Ze-xiang |
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| Institution: | 1. Faculty of Materials Science and Chemical Engineering, China University of Geosciences, Wuhan 430074，China2. Faculty of Chemistry and Environmental Engineering, Hubei Institute for Nationalities, Enshi 445000, China |
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| Abstract: | A new method for the determination of trace beryllium in geological samples by oxygen-air-acetylene flame atomic absorption spectrometry is reported in the present paper. The optimum determination conditions were selected. When suitable amounts of 8-hydroxyquinoline are added, the interference effect from the coexisting elements can be minimized and the sensitivity for the determination of beryllium can be increased. The detection limit (k = 3) is 0.006 microg x mL(-1) for beryllium. The method has been applied to the determination of trace beryllium in geological standard samples, and the results are in good agreement with the certified values with a precision of 4.69% RSD( n = 8). |
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| Keywords: | Oxygen enriched air-acetylene flame AAS Geological samples Beryllium |
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