| 热表面电离质谱法对锂同位素的测 |
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| 引用本文： | 刘雪梅,龙开明,贾宝亭,汤磊,杨天丽,刘钊. 热表面电离质谱法对锂同位素的测[J]. 核化学与放射化学, 2006, 28(3): 188-191 |
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| 作者姓名： | 刘雪梅 龙开明 贾宝亭 汤磊 杨天丽 刘钊 |
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| 作者单位： | 中国工程物理研究院 核物理 |
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| 基金项目： | 中国工程物理研究院科技基金 |
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| 摘 要： | 为建立一套适用于实验室锂同位素的分析方法,选定Li 为检测离子,对热电离质谱法(TIMS)分析锂同位素的实验条件进行探索,包括单、双带测量,加载H3PO4和锂样品用量,建立了质谱分析条件。并采用此方法测定了标准物质样品的丰度和浓度,对塑料闪烁体中掺杂6Li的质量分数进行分析,给出测量方法的不确定度(U)为0.024,方法相对标准偏差(sr)小于0.3%。
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| 关 键 词： | 热电离质谱法 锂同位素 塑料闪烁 |
| 文章编号： | 0253-9950(2006)03-0188-04 |
| 收稿时间： | 2005-11-14 |
| 修稿时间： | 2006-04-20 |
Analysis of Lithium Isotopes by TIMS |
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| LIU Xue-mei,LONG Kai-ming,JIA Bao-ting,TANG Lei,YANG Tian-li,LIU Zhao. Analysis of Lithium Isotopes by TIMS[J]. Journal of Nuclear and Radiochemistry, 2006, 28(3): 188-191 |
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| Authors: | LIU Xue-mei LONG Kai-ming JIA Bao-ting TANG Lei YANG Tian-li LIU Zhao |
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| Affiliation: | Institute of Nuclear |
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| Abstract: | The lithium isotopic analysis by thermal ionization mass spectrometry and the method for data processing of the measurement of lithium isotopic ratios were recommended.The preparation of standard material solution,the establishment of mass spectrometry analytic condition,the determination of aboundance and concentration of the standard sample were introduced.At the same time,the method of obtaining measurement data and the uncertainty in measurement of the abundance ratios were discussed.In addition the ~(6)Li in the plastic scintillator sample was quantified,and the s_(r) is less than 0.3%. |
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| Keywords: | TIMS lithium isotope plastic scintillator ~(6)Li |
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