| 负热电离同位素稀释质谱法分析锝97稀释剂 |
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| 引用本文： | 刘雪梅,汤磊,龙开明,杨天丽,刘钊. 负热电离同位素稀释质谱法分析锝97稀释剂[J]. 岩矿测试, 2010, 29(4): 368-372 |
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| 作者姓名： | 刘雪梅 汤磊 龙开明 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与化学研究所,四川,绵阳,621900 |
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| 摘 要： | 用负热电离质谱法对自行研制生产的97Tc稀释剂同位素组成进行分析测定,并采用同位素稀释质谱法对其浓度进行标定,选用等概率模型对同位素比值测定结果进行校正,组成分析扩展不确定度为1.3%(K=2),浓度标定扩展不确定度为2.07%(K=2)。
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| 关 键 词： | 锝 稀释剂 负热电离质谱法 等概率模型 |
| 收稿时间： | 2009-08-26 |
| 修稿时间： | 2009-12-10 |
Analysis of 97Tc Spike by Negative Thermal Ionization Mass Spectrometry |
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| LIU Xue-mei,TANG Lei,LONG Kai-ming,YANG Tian-li and LIU Zhao. Analysis of 97Tc Spike by Negative Thermal Ionization Mass Spectrometry[J]. Rock and Mineral Analysis, 2010, 29(4): 368-372 |
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| Authors: | LIU Xue-mei TANG Lei LONG Kai-ming YANG Tian-li LIU Zhao |
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| Affiliation: | Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China;Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China;Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China;Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China;Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China |
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| Abstract: | 97Tc spike produced by our laboratory was analyzed by negative thermal ionization mass spectrometry (NTIMS). Equal-probability model was used for correction of isotope ratio measurements. The isotope ratio of 97Tc spike was measured with the expanded uncertainty of 1.3%(K=2). 97Tc concentration was also determined by isotope dilution mass spectrometry (IDMS) with the expanded uncertainty of 2.12% (K=2). |
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| Keywords: | technetium spike negative thermal ionization mass spectrometry equal-probability model |
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