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High Precise Determination of Bromine Isotopic Ratios by Positive Thermal Ionization Mass Spectrometry Using Static Multicollection Based on Cs2Br+ Ions
Ma Yun-Qi1,2; Peng Zhang-Kuang1,3; Chen Yan-Jiao1,3; Yang Jian1,3; Xiao Ying-Kai1; Zhang Yan-Ling1
2016-02-01
发表期刊CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
卷号44期号:2页码:186-191
文章类型Article
摘要A high precise determination of stable bromine (Br) isotopic ratios was achieved by thermal ionization mass spectrometer (TIMS) triton with 8 kV accelerating voltage using static multicollection of Cs2Br+ ions. The effect of B and Cl content on the measurement of Br isotope was studied. The static multicollection method had many advantages, such as high precision ( external accuracy lies between 0.09 parts per thousand-0.18 parts per thousand), small amount of sample loading ( 10-20 mu g Br) and short acquisition time (just 8 min for 100 cycles). The results showed that the effect of co-existing Cl on the measurement of Br isotope ratio increased with the increase of Cl content, and that the presence of B made the determined bromine isotope ratio lower than that without B. The effect of the sample loading sequence on the results of the determined Br isotopic ratio was insignificant. Meanwhile, the four bromide of Br isotopic composition were determined, its delta Br-81 was between 0.61 parts per thousand-1.68 parts per thousand, showing a significant Br isotope fractionation.
关键词Bromine Isotope Positive Thermal Ionization Mass Spectrometry Static Multicollection Cs2br++
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]STABLE-ISOTOPE ; DELTA-CL-37 ; DELTA-BR-81 ; WATERS ; CHLORINE
收录类别SCI
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Analytical
WOS记录号WOS:000370983100003
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6297
专题青海盐湖研究所知识仓储
盐湖地质与环境实验室
作者单位1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Lab Salt Lake Geol & Environm, Xining 810008, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Salt Lake Chem Analyzing & Testing Ctr, Xining 810008, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Ma Yun-Qi,Peng Zhang-Kuang,Chen Yan-Jiao,et al. High Precise Determination of Bromine Isotopic Ratios by Positive Thermal Ionization Mass Spectrometry Using Static Multicollection Based on Cs2Br+ Ions[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2016,44(2):186-191.
APA Ma Yun-Qi,Peng Zhang-Kuang,Chen Yan-Jiao,Yang Jian,Xiao Ying-Kai,&Zhang Yan-Ling.(2016).High Precise Determination of Bromine Isotopic Ratios by Positive Thermal Ionization Mass Spectrometry Using Static Multicollection Based on Cs2Br+ Ions.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,44(2),186-191.
MLA Ma Yun-Qi,et al."High Precise Determination of Bromine Isotopic Ratios by Positive Thermal Ionization Mass Spectrometry Using Static Multicollection Based on Cs2Br+ Ions".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 44.2(2016):186-191.
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