Difference in the stable isotopic fractionations of Ce, Nd, and Sm during adsorption on iron and manganese oxides and its interpretation based on their local structures
文献类型：期刊论文
| 作者 | Nakada, Ryoichi1; Tanimizu, Masaharu1,2; Takahashi, Yoshio1,2,3 |
| 刊名 | GEOCHIMICA ET COSMOCHIMICA ACTA
 |
| 出版日期 | 2013-11-15 |
| 卷号 | 121页码:105-119 |
| ISSN号 | 0016-7037 |
| DOI | 10.1016/j.gca.2013.07.014 |
| 文献子类 | Article |
| 英文摘要 | Many elements have become targets for studies of stable isotopic fractionation with the development of various analytical techniques. Although several chemical factors that control the isotopic fractionation of heavy elements have been proposed, it remains controversial which properties are most important for the isotopic fractionation of elements. In this study, the stable isotopic fractionation of neodymium (Nd) and samarium (Sm) during adsorption on ferrihydrite and delta-MnO2 was examined. This examination was combined with speciation analyses of these ions adsorbed on the solid phases by extended X-ray absorption fine structure (EXAFS) spectroscopy. Neodymium isotope ratios for Nd on ferrihydrite and delta-MnO2 systems were, on average, 0.166 parts per thousand and 0.410 parts per thousand heavier than those of the liquid phase, which correspond to mean isotopic fractionation factors between the liquid and solid phases (alpha(Lq-So)) of Nd on ferrihydrite and delta-MnO2 of 0.999834 (2 sigma = +/- 0.000048) and 0.999590 (2 sigma = +/- 0.000106), respectively. Similarly, averaged Sm isotope ratios on ferrihydrite and delta-MnO2 were 0.206 parts per thousand and 0.424 parts per thousand heavier than those of the liquid phase and the corresponding alpha(Lq-So) values were 0.999794 (+/- 0.000041) and 0.999576 (+/- 0.000134), respectively. These results indicate that the directions of isotopic fractionation in the Nd and Sm systems are in contrast with that recently found for Ce(III) systems despite the similar chemical characteristics of rare earth elements. |
| WOS关键词 | RARE-EARTH-ELEMENTS ; ABSORPTION FINE-STRUCTURE ; CHROMIUM ISOTOPES ; MASS-SPECTROMETRY ; NATURAL-WATERS ; FERROMANGANESE CRUSTS ; MULTIPLE-SCATTERING ; ZN ISOTOPES ; CROWN-ETHER ; MN OXIDES |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000325077100008 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | JSPS Research Fellowships for Young Scientists ; JSPS Research Fellowships for Young Scientists ; JSPS Research Fellowships for Young Scientists ; JSPS Research Fellowships for Young Scientists ; JSPS Research Fellowships for Young Scientists ; JSPS Research Fellowships for Young Scientists ; JSPS Research Fellowships for Young Scientists ; JSPS Research Fellowships for Young Scientists |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/87612]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Nakada, Ryoichi |
| 作者单位 | 1.Hiroshima Univ, Grad Sch Sci, Dept Earth & Planetary Syst Sci, Higashihiroshima, Hiroshima 7398526, Japan 2.Japan Agcy Marine Earth Sci & Technol JAMSTEC, Kochi Inst Core Sample Res, Nankoku, Kochi 7838502, Japan 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Nakada, Ryoichi,Tanimizu, Masaharu,Takahashi, Yoshio. Difference in the stable isotopic fractionations of Ce, Nd, and Sm during adsorption on iron and manganese oxides and its interpretation based on their local structures[J]. GEOCHIMICA ET COSMOCHIMICA ACTA,2013,121:105-119. |
| APA | Nakada, Ryoichi,Tanimizu, Masaharu,&Takahashi, Yoshio.(2013).Difference in the stable isotopic fractionations of Ce, Nd, and Sm during adsorption on iron and manganese oxides and its interpretation based on their local structures.GEOCHIMICA ET COSMOCHIMICA ACTA,121,105-119. |
| MLA | Nakada, Ryoichi,et al."Difference in the stable isotopic fractionations of Ce, Nd, and Sm during adsorption on iron and manganese oxides and its interpretation based on their local structures".GEOCHIMICA ET COSMOCHIMICA ACTA 121(2013):105-119. |
入库方式： OAI收割
来源：地质与地球物理研究所
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