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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
Source PublicationANALYTICAL CHEMISTRY
Volume74Issue:11Pages:2458-2464
SubtypeArticle
AbstractThe 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.
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordPRECISE MEASUREMENT ; FRACTIONATION
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Analytical
WOS IDWOS:000175995400009
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Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6082
Collection青海盐湖研究所知识仓储
Affiliation1.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
Recommended Citation
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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