Determination of Rb-87/Sr-86 and Sr-87/Sr-86 ratios and Rb-Sr contents on the same filament loading for geological samples by isotope dilution thermal ionization mass spectrometry
文献类型：期刊论文
| 作者 | Li, Chaofeng1,5; Chu, Zhuyin1,5; Wang, Xuance2,3; Guo, Jinghui1,5; Wilde, Simon A.4 |
| 刊名 | TALANTA
 |
| 出版日期 | 2021-10-01 |
| 卷号 | 233页码:7 |
| ISSN号 | 0039-9140 |
| 关键词 | Rb-Sr isotopes ID-TIMS Sr-87/Sr-86 Rb-87/Sr-86 |
| DOI | 10.1016/j.talanta.2021.122537 |
| 英文摘要 | Isotope dilution thermal ionization mass spectrometry (ID-TIMS) is considered the "gold standard" for obtaining precise Rb-87/Sr-86 and Sr-87/Sr-86 isotope ratios and accurate elemental concentrations of Rb-Sr. However, the classical ID-TIMS technique is laborious and time-consuming because the purified Rb and Sr fractions must be individually loaded onto different independent filaments due to severe Rb-87 isobaric interference on Sr-87. To overcome this issue, we developed a new method whereby Rb and Sr were sequentially measured by TIMS on the same filament, without venting, to obtain both ratios of Rb-87/Sr-86 and Sr-87/Sr-86 and concentrations of Rb and Sr. Results obtained from six silicate powders of certified reference materials are in good agreement with recommended values within +/- 0.002% for the Sr-87/Sr-86 ratio, +/- 2% for the Rb-87/Sr-86 ratio and the Rb and Sr elemental contents. The only exception is JG-1a, with slightly higher Rb-87/Sr-86 and slightly lower Sr-87/Sr-86. This new method improved the analytical efficiency and sample throughput without compromising the analytical accuracy and precision. The filament consumption is reduced by 50% compared with conventional methods and therefore significantly reduces operation costs. |
| WOS关键词 | ICP-MS ; PRECISE DETERMINATION ; TRACE-ELEMENT ; CHEMICAL-SEPARATION ; CATION-EXCHANGE ; ND ; RESIN ; WATER ; TIMS ; HF |
| 资助项目 | Instrument Function Developing Project of the Chinese Academy of Sciences[GNKF202103] ; National Natural Science Foundation of China[42073050] ; Key Research Program of the Institute of Geology & Geophysics, CAS[IGGCAS201905] ; Research Start-up Project for Introduced Talent of Yunnan University[20190043] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000668000500060 |
| 资助机构 | Instrument Function Developing Project of the Chinese Academy of Sciences ; Instrument Function Developing Project of the Chinese Academy of Sciences ; Instrument Function Developing Project of the Chinese Academy of Sciences ; Instrument Function Developing Project of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Research Start-up Project for Introduced Talent of Yunnan University ; Research Start-up Project for Introduced Talent of Yunnan University ; Research Start-up Project for Introduced Talent of Yunnan University ; Research Start-up Project for Introduced Talent of Yunnan University ; Instrument Function Developing Project of the Chinese Academy of Sciences ; Instrument Function Developing Project of the Chinese Academy of Sciences ; Instrument Function Developing Project of the Chinese Academy of Sciences ; Instrument Function Developing Project of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Research Start-up Project for Introduced Talent of Yunnan University ; Research Start-up Project for Introduced Talent of Yunnan University ; Research Start-up Project for Introduced Talent of Yunnan University ; Research Start-up Project for Introduced Talent of Yunnan University ; Instrument Function Developing Project of the Chinese Academy of Sciences ; Instrument Function Developing Project of the Chinese Academy of Sciences ; Instrument Function Developing Project of the Chinese Academy of Sciences ; Instrument Function Developing Project of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Research Start-up Project for Introduced Talent of Yunnan University ; Research Start-up Project for Introduced Talent of Yunnan University ; Research Start-up Project for Introduced Talent of Yunnan University ; Research Start-up Project for Introduced Talent of Yunnan University ; Instrument Function Developing Project of the Chinese Academy of Sciences ; Instrument Function Developing Project of the Chinese Academy of Sciences ; Instrument Function Developing Project of the Chinese Academy of Sciences ; Instrument Function Developing Project of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Research Start-up Project for Introduced Talent of Yunnan University ; Research Start-up Project for Introduced Talent of Yunnan University ; Research Start-up Project for Introduced Talent of Yunnan University ; Research Start-up Project for Introduced Talent of Yunnan University |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/101946]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Li, Chaofeng |
| 作者单位 | 1.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 2.Yunnan Univ, Sch Earth Sci, Kunming 650500, Yunnan, Peoples R China 3.Univ Queensland, Sch Earth & Environm Sci, Brisbane, Qld 4072, Australia 4.Curtin Univ, Sch Earth & Planetary Sci, Inst Geosci Res TIGeR, GPO Box U1987, Perth, WA 6845, Australia 5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Chaofeng,Chu, Zhuyin,Wang, Xuance,et al. Determination of Rb-87/Sr-86 and Sr-87/Sr-86 ratios and Rb-Sr contents on the same filament loading for geological samples by isotope dilution thermal ionization mass spectrometry[J]. TALANTA,2021,233:7. |
| APA | Li, Chaofeng,Chu, Zhuyin,Wang, Xuance,Guo, Jinghui,&Wilde, Simon A..(2021).Determination of Rb-87/Sr-86 and Sr-87/Sr-86 ratios and Rb-Sr contents on the same filament loading for geological samples by isotope dilution thermal ionization mass spectrometry.TALANTA,233,7. |
| MLA | Li, Chaofeng,et al."Determination of Rb-87/Sr-86 and Sr-87/Sr-86 ratios and Rb-Sr contents on the same filament loading for geological samples by isotope dilution thermal ionization mass spectrometry".TALANTA 233(2021):7. |
入库方式： OAI收割
来源：地质与地球物理研究所
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