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题名: Effective elimination of isobaric ions interference and precise thermalionization mass spectrometer analysis for boron isotope
作者: Wei, HZ ;  Xiao, YK ;  Sun, A ;  Zhang, CG ;  Li, SZ
刊名: INTERNATIONAL JOURNAL OF MASS SPECTROMETRY
出版日期: 2004
卷号: 235, 期号:2, 页码:187-195
英文摘要: An ionization depressor, 1% H3PO4 was used to eliminate the isobaric interference that has been of a great concern during the procedure of boron isotopic ratio analysis by thermal ionization mass spectrometer (TIMS). Our experiments have shown that it appears to be an effective method to completely restrain the formation of isobaric ions of CNO- and Cs2CNO+ in the ionization source of mass spectrometer. We have also discussed the optimum proportion of depressor to nitrite for precise analysis of boron isotopes in natural samples based on a conditional experiment. In this case, the pretreatment of boron extraction from natural samples is greatly simplified since it is not necessary to remove nitrite and organic matter completely. In virtue of the method, we determined boron isotope in different types of natural samples, and our results are consistent with previous reports. (C) 2004 Elsevier B.V. All rights reserved. An ionization depressor, 1% H3PO4 was used to eliminate the isobaric interference that has been of a great concern during the procedure of boron isotopic ratio analysis by thermal ionization mass spectrometer (TIMS). Our experiments have shown that it appears to be an effective method to completely restrain the formation of isobaric ions of CNO- and Cs2CNO+ in the ionization source of mass spectrometer. We have also discussed the optimum proportion of depressor to nitrite for precise analysis of boron isotopes in natural samples based on a conditional experiment. In this case, the pretreatment of boron extraction from natural samples is greatly simplified since it is not necessary to remove nitrite and organic matter completely. In virtue of the method, we determined boron isotope in different types of natural samples, and our results are consistent with previous reports. (C) 2004 Elsevier B.V. All rights reserved.
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.isl.ac.cn/handle/363002/2366
Appears in Collections:青海盐湖研究所知识仓储(2014年之前)_期刊论文

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Recommended Citation:
Wei, HZ,Xiao, YK,Sun, A,et al. Effective elimination of isobaric ions interference and precise thermalionization mass spectrometer analysis for boron isotope[J]. INTERNATIONAL JOURNAL OF MASS SPECTROMETRY,2004,235(2):187-195.
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