| 硝酸镁对GFAAS法测定微量铍的基体改进效应 |
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| 引用本文： | 宋建刚.硝酸镁对GFAAS法测定微量铍的基体改进效应[J].光谱实验室,2006,23(6):1299-1302. |
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| 作者姓名： | 宋建刚 |
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| 作者单位： | 中国工程物理研究院,621900 |
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| 摘 要： | 以硝酸镁作为GFAAS法测量微量铍的基体改进剂,研究了硝酸镁对石墨炉灰化和原子化的影响,探讨了硝酸镁的作用机理.结果表明,硝酸镁能提高灰化温度,降低原子化活化能,并对吸收信号有延迟作用,从而有利于消除基体干扰,提高分析灵敏度.
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| 关 键 词： | 铍 硝酸镁 石墨炉原子吸收法 基体改进剂 |
| 文章编号： | 1004-8138(2006)06-1299-04 |
| 收稿时间： | 2006-08-30 |
| 修稿时间： | 2006-09-19 |
Effect of Mg(NO3)2 as the Matrix Modifier in Determination of Trace Beryllium by Graphite Furnace Atomic Absorption Spectrometry |
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| SONG Jian-Gang.Effect of Mg(NO3)2 as the Matrix Modifier in Determination of Trace Beryllium by Graphite Furnace Atomic Absorption Spectrometry[J].Chinese Journal of Spectroscopy Laboratory,2006,23(6):1299-1302. |
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| Authors: | SONG Jian-Gang |
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| Institution: | China Academy of Engineering Physics,P. O. Box 919-71 ,Mianyang,Sichuan 621900 ,P. R. China |
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| Abstract: | Magnesium nitrate as matrix modifier in the determination of trace beryllium by GFAAS was studied.The effect mechanism of Mg(NO_3)_2 on ashing and atomization was studied.(Mg(NO_3)_2) as matrix modifier can raise the ashing temperature,decrease the atomization activation energy and delay the absorption signal.So it was helpful in the elimination of matrix interference and improvement of sensibility. |
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| Keywords: | Beryllium Magnesium Nitrate Graphite Furnace Atomic Absorption Spectrometry Matrix Modifier |
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