Precise Determination of Stable Strontium Isotopic Compositions by MC-ICP-MS
文献类型：期刊论文
| 作者 | Xu, Juan3; Yang, Shouye3; Yang, Yueheng1; Liu, Yongsheng2; Xie, Xiaolei3 |
| 刊名 | ATOMIC SPECTROSCOPY
 |
| 出版日期 | 2020-03-01 |
| 卷号 | 41期号:2页码:64-73 |
| ISSN号 | 0195-5373 |
| 英文摘要 | The investigation of variations within the non-traditional stable Sr isotope composition in various natural systems has gained a broader interest in recent years. Although significant improvements in the analytical precision for isotopic ratio analysis have been made, the accurate determination of stable Sr isotopic ratios is still a challenge. This study shows the key controlling factors affecting the precise determination of stable Sr isotopic ratios by using Neptune Plus MC-ICP-MS, including matrix effect, internal standard correction and nebulizer fractionation effect. Further, a novel step is presented in the Sr purification by using Sr-spec (R) resin, which increased the recovery rates to > 98.5%. In this work, the mass bias effects between Zr-92/Zr-90 and Sr-88/Sr-86 were investigated and compared, and a 3 similar to 5-fold improvement in the precision of the determination of Sr-88/Sr-86 was obtained compared to that based on only the standard-sample-bracketing technique. Moreover, nebulizer fractionation was illustrated by using an in-house standard solution, Alfa Sr, and the seawater standard, IAPSO. As for the matrix effect, residual Ca in the purified Sr fraction was evaluated and showed insignificant influence. Overall, a feasible, highly-efficient procedure for the stable Sr separation and analysis was developed. The seawater standard, IAPSO, yielded delta Sr-88/86 = 0.374 +/- 0.028 parts per thousand (2SD, n = 23), which is in agreement with reported data. The long-term reproducibility for the rock standard materials, BCR-2 and BHVO-2, yielded delta Sr-88/86 = 0.232 +/- 0.015 parts per thousand (2SD, n = 10), delta Sr-88/86 = 0.249 +/- 0.014940 (2SD, n = 7), respectively, and agrees well with published data. The in-house standard solution, Alfa Sr, was produced to check for the long-term reproducibility of the method and yielded a comparable value of 0.113 +/- 0.039 parts per thousand (2SD, n = 46) over 6 months. |
| WOS关键词 | INDUCTIVELY-COUPLED PLASMA ; MASS BIAS CORRECTION ; RATIO MEASUREMENTS ; LASER-ABLATION ; SR-87/SR-86 ; SPECTROMETRY ; DELTA-SR-88/86 ; FRACTIONATION ; CARBONATES ; SAMPLES |
| 资助项目 | National Natural Science Foundation of China[41730531] ; NSFC-Shandong Joint Fund for Marine Science Research Centers[U1606401] |
| WOS研究方向 | Spectroscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:000531873900003 |
| 出版者 | ATOMIC SPECTROSCOPY PRESS LTD |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC-Shandong Joint Fund for Marine Science Research Centers ; NSFC-Shandong Joint Fund for Marine Science Research Centers ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC-Shandong Joint Fund for Marine Science Research Centers ; NSFC-Shandong Joint Fund for Marine Science Research Centers ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC-Shandong Joint Fund for Marine Science Research Centers ; NSFC-Shandong Joint Fund for Marine Science Research Centers ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC-Shandong Joint Fund for Marine Science Research Centers ; NSFC-Shandong Joint Fund for Marine Science Research Centers |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/96740]  |
| 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 | Xu, Juan |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China 3.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Juan,Yang, Shouye,Yang, Yueheng,et al. Precise Determination of Stable Strontium Isotopic Compositions by MC-ICP-MS[J]. ATOMIC SPECTROSCOPY,2020,41(2):64-73. |
| APA | Xu, Juan,Yang, Shouye,Yang, Yueheng,Liu, Yongsheng,&Xie, Xiaolei.(2020).Precise Determination of Stable Strontium Isotopic Compositions by MC-ICP-MS.ATOMIC SPECTROSCOPY,41(2),64-73. |
| MLA | Xu, Juan,et al."Precise Determination of Stable Strontium Isotopic Compositions by MC-ICP-MS".ATOMIC SPECTROSCOPY 41.2(2020):64-73. |
入库方式： OAI收割
来源：地质与地球物理研究所
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