| 离子流强度累计法测定锂同位素丰度 |
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| 引用本文： | 朱凤蓉,马鑫.离子流强度累计法测定锂同位素丰度[J].质谱学报,1993,14(4):57-63. |
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| 作者姓名： | 朱凤蓉 马鑫 |
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| 作者单位： | 西北核技术研究所，西北核技术研究所，西北核技术研究所 西安 710024，西安 710024，西安 710024 |
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| 摘 要： | 本文介绍了离子流强度累计测定同位素比的方法。用热表面离子源测定了锂同位素丰度,在样品全耗尽过程中累计离子流强度。用该方法,同位素分馏效应对丰度比测量结果几乎没有影响。文中比较了累计法与常规法测量锂同位素丰度时分馏效应的差异。
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| 关 键 词： | 锂 同位素比测定 累计法 |
Deternination of Isotopic Ratio of Lithium By Cumulative Method of Ion Curren Intensity |
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| Zhu Fengrong,Ma Xin,Wang Changhai.Deternination of Isotopic Ratio of Lithium By Cumulative Method of Ion Curren Intensity[J].Journal of Chinese Mass Spectrometry Society,1993,14(4):57-63. |
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| Authors: | Zhu Fengrong Ma Xin Wang Changhai |
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| Abstract: | A method by cumulative intensity of ion current to analyse isotopic ratio is proposed in present paper. The isotopic ratio of lithium was determined by cumulating intensity of ion current during evaporation of all samples on evaporation filament. Isotopic mass fractionation has no effect on results almost by using this method. Isotopic fractionations of normal method and the method of cumulative intensity were discussed. |
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| Keywords: | lithium determination of isotopic ratio cumulative method |
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