Mass-independent fractionation of even mercury isotopes

	Mass-independent fractionation of even mercury isotopes
	Hongming Cai; Jiubin Chen
	2016
发表期刊	Science Bulletin
卷号	61 期号:2 页码:116-124
摘要	Practically all physical, chemical, and biological processes can induce mass-dependent fractionation of mercury (Hg) isotopes. A few special processes such as photochemical reduction of Hg(II) and photochemical degradation of methylmercury (MeHg) can produce mass-independent fractionation (MIF) of odd Hg isotopes (odd-MIF), which had been largely reported in variable natural samples and laboratory experiments, and was thought to be caused by either nuclear volume effect or magnetic isotope effect. Recently, intriguing MIF of even Hg isotopes (even-MIF) had been determined in natural samples mainly related to the atmosphere. Though photo-oxidation in the tropopause (inter-layer between the stratosphere and the troposphere) and neutron capture in space were thought to be the possible processes causing even-MIF, the exact mechanism triggering significant even Hg isotope anomaly is still unclear. Even-MIF could provide useful information about the atmospheric chemistry and related climate changes, and the biogeochemical cycle of Hg.
学科领域	环境地球化学
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/6088
专题	环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文
推荐引用方式 GB/T 7714	Hongming Cai,Jiubin Chen. Mass-independent fractionation of even mercury isotopes[J]. Science Bulletin,2016,61(2):116-124.
APA	Hongming Cai,&Jiubin Chen.(2016).Mass-independent fractionation of even mercury isotopes.Science Bulletin,61(2),116-124.
MLA	Hongming Cai,et al."Mass-independent fractionation of even mercury isotopes".Science Bulletin 61.2(2016):116-124.

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