Major factors affecting the isotopic measurement of chlorine based on the CS2Cl+ ion by thermal ionization mass spectrometry

doi:10.1021/ac0107352

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（1985-2004）

	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
文章类型	Article
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.
学科领域	Chemistry
DOI	10.1021/ac0107352
关键词[WOS]	PRECISE MEASUREMENT ; FRACTIONATION
收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Chemistry, Analytical
WOS记录号	WOS:000175995400009
出版者	AMER CHEMICAL SOC
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/12050
专题	黄土与第四纪地质国家重点实验室（1985-2004）
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.