Knowledge Management System Of Qinghai Institute of Salt Lakes,CAS
Major factors affecting the isotopic measurement of chlorine based on the CS2Cl+ ion by thermal ionization mass spectrometry | |
Xiao, YK; Lu, H; Zhang, CG; Wang, QZ; Wei, HZ; Sun, A; Liu, WG | |
2002-06-01 | |
发表期刊 | ANALYTICAL CHEMISTRY |
卷号 | 74期号:11页码:2458-2464 |
摘要 | The factors that affect isotopic measurement of chlorine based on Cs2Cl+ ion by thermal ionization mass spectrometry were studied. Graphite is essential for the emission of Cs2Cl+ ion from CsCl. No Cs2Cl+ ions are detected in the absence of graphite on the filament. The emission of Cs2Cl+ ion and the measured Cl-37/Cl-35 ratio were affected by different varieties of graphite, the pH value of the sample solution, and impurities in the solution. High-precision isotopic measurement of chlorine based on Cs2Cl+ ion is achieved only by using graphite with a perfect crystal structure. The measured Cl-37/Cl-35 ratios were much higher, and even the emission of Cs2Cl+ ion becomes impossible when pH values of the sample solution were higher than 6, corresponding to the presence of excess Cs. The measured Cl-37/Cl-35 ratios were higher when SO42- and NO3- anions were present. The results show that the measured Cl-37/Cl-35 ratios are weakly related to the amount of chlorine on filament in a range from 1 to 500 mug. |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.isl.ac.cn/handle/363002/6082 |
专题 | 青海盐湖研究所知识仓储 中国科学院青海盐湖研究所 |
作者单位 | 1.Acad Sinica, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China |
推荐引用方式 GB/T 7714 | Xiao, YK,Lu, H,Zhang, CG,et al. Major factors affecting the isotopic measurement of chlorine based on the CS2Cl+ ion by thermal ionization mass spectrometry[J]. ANALYTICAL CHEMISTRY,2002,74(11):2458-2464. |
APA | Xiao, YK.,Lu, H.,Zhang, CG.,Wang, QZ.,Wei, HZ.,...&Liu, WG.(2002).Major factors affecting the isotopic measurement of chlorine based on the CS2Cl+ ion by thermal ionization mass spectrometry.ANALYTICAL CHEMISTRY,74(11),2458-2464. |
MLA | Xiao, YK,et al."Major factors affecting the isotopic measurement of chlorine based on the CS2Cl+ ion by thermal ionization mass spectrometry".ANALYTICAL CHEMISTRY 74.11(2002):2458-2464. |
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