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Positive Thermal Ionization Mass Spectrometric Analysis of Boron Isotopeon River/Rain Water with Low Content and Rich Organic Matter
He Mao-Yong; Xiao Jun
2011
发表期刊CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
卷号39期号:4页码:552-555
摘要A method for separation and isotopic determination of boron with low content and rich organic matter in the river/rain water samples was developed. Samples were concentrated by ion exchange Amberlite IRA-743 resin. The concentrated solution was subsequently micro-sublimated for 12 h to eliminate the organic matters. Then the boron isotope ratio was determined by measuring positive Cs(2)BO(2)(+) thermal ions. The average recovery was between 97. 5% and 101. 2%. The results that were determined by positive thermal ionization mass spectrometry were closed to those by MC-ICP-MS. The precision of isotopic measurement for boron in river/rain water was better than 0. 05 parts per thousand. The results demonstrated that this method was extremely effective for elimination organic matter interference during boron isotopic analysis with low sample size, high precision and accuracy. A method for separation and isotopic determination of boron with low content and rich organic matter in the river/rain water samples was developed. Samples were concentrated by ion exchange Amberlite IRA-743 resin. The concentrated solution was subsequently micro-sublimated for 12 h to eliminate the organic matters. Then the boron isotope ratio was determined by measuring positive Cs(2)BO(2)(+) thermal ions. The average recovery was between 97. 5% and 101. 2%. The results that were determined by positive thermal ionization mass spectrometry were closed to those by MC-ICP-MS. The precision of isotopic measurement for boron in river/rain water was better than 0. 05 parts per thousand. The results demonstrated that this method was extremely effective for elimination organic matter interference during boron isotopic analysis with low sample size, high precision and accuracy.
关键词Organic Matter River/rain Water Boron Isotope Micro-sublimation
收录类别SCI
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/1879
专题青海盐湖研究所知识仓储
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He Mao-Yong,Xiao Jun. Positive Thermal Ionization Mass Spectrometric Analysis of Boron Isotopeon River/Rain Water with Low Content and Rich Organic Matter[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2011,39(4):552-555.
APA He Mao-Yong,&Xiao Jun.(2011).Positive Thermal Ionization Mass Spectrometric Analysis of Boron Isotopeon River/Rain Water with Low Content and Rich Organic Matter.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,39(4),552-555.
MLA He Mao-Yong,et al."Positive Thermal Ionization Mass Spectrometric Analysis of Boron Isotopeon River/Rain Water with Low Content and Rich Organic Matter".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 39.4(2011):552-555.
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