| 直流等离子体－中阶梯光栅直读光谱仪测定地质样品中微量锂 |
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| 引用本文： | 陈俊芬. 直流等离子体－中阶梯光栅直读光谱仪测定地质样品中微量锂[J]. 光谱学与光谱分析, 1996, 0(3) |
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| 作者姓名： | 陈俊芬 |
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| 作者单位： | 西北有色地质测试中心 |
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| 摘 要： | 本文应用ＤＣＰ－ＡＥＳ法测定地质样品中微量锂。讨论了基体效应和阴离子效应、基体（Ｆｅ、Ａｌ、Ｃａ、Ｍｇ、Ｋ和Ｎａ）对Ｌｉ元素谱线产生不同程度的增强效应。在待测溶液中加入一定量的基体元素，能有效地降低或消除这种影响。基体元素产生的增强效应主要是阳离子的作用。还讨论了分析线的线性状况。方法简便可靠，Ｌｉ的测定范围为１～１５００μｇ／ｇ，相对标准偏差为３．１～６．３％。
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| 关 键 词： | 锂，原子发射光谱，基体效应 |
DCP ATOMIC EMISSION SPECTROMETRIC DETERMINATION OF THE TRACE Li IN GEOLOGICAL SPECIMEN BY USING ECHELLE GRATING SPECTROMETER |
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| CHEN Junfen. DCP ATOMIC EMISSION SPECTROMETRIC DETERMINATION OF THE TRACE Li IN GEOLOGICAL SPECIMEN BY USING ECHELLE GRATING SPECTROMETER[J]. Spectroscopy and Spectral Analysis, 1996, 0(3) |
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| Authors: | CHEN Junfen |
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| Affiliation: | Northwest Nonferrous Analysis and Testing Center of Geology 1710054 Xi'an |
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| Abstract: | A DCP-AES method is proposed for the determination of the trace Li in geological specimen.The effects of matrix and negative ion are proposed.Matrix(Fe,Al,Ca,Mg,K and Na) brings enhanced effects of different extent to the spectrum of the element Li. The matrix interference can be eliminated effectively by adding adequate amount of matrix element into the analyte liquor. The enhanced effect presented in the matrix element is chiefly the effect of canon.The linear situation of analytic line of the element Li is also discussed. |
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| Keywords: | Li Atomic emission spectrometry Effect of matrix |
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