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题名: Positive Thermal Ionization Mass Spectrometric Analysis of Boron Isotopeon River/Rain Water with Low Content and Rich Organic Matter
作者: He Mao-Yong ;  Xiao Jun
刊名: CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
出版日期: 2011
卷号: 39, 期号:4, 页码:552-555
关键词: Organic matter ;  River/rain water ;  Boron isotope ;  Micro-sublimation
英文摘要: 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.
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/363002/1879
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:
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.
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