A Chromatographic Approach for High-Precision Eu Isotope Analysis
文献类型：期刊论文
| 作者 | Wu, Hao1,4; Bai, Jiang-Hao4; Liang, Xi-Rong4; Lu, Xi-Bin1,4; Deng, Yi-Nan2; Li, Ming3; Ma, Jin-Long4; Wei, Gang-Jian4 |
| 刊名 | ANALYTICAL CHEMISTRY
 |
| 出版日期 | 2024-09-12 |
| 卷号 | 96期号:38页码:15102-15107 |
| ISSN号 | 0003-2700 |
| DOI | 10.1021/acs.analchem.4c03775 |
| 英文摘要 | Eu isotopes are promising tracers across various scientific domains such as planetary, earth, and marine science, yet their high-precision analysis has been challenging due to the similar geochemical properties of rare earth elements (REEs). In this study, a novel two-column chromatographic approach was developed utilizing AG50W-X12 and TODGA resins to separate Eu effectively from matrix and interfering elements like Ba, Nd, Sm, and Gd, while ensuring high Eu yields (99.4 +/- 0.4%, n = 19) and low blanks (<20 pg). The robustness of this method is evidenced by various rock types and different Eu loading masses. The efficient purification of Eu facilitated the establishment of a high-precision calibration technique with standard-sample bracketing (SSB) and internal normalization (Nd). When a Nu Plasma 1700 multicollector-inductively coupled plasma-mass spectrometry (MC-ICP-MS) instrument was employed, repeated purification and analysis of various Geological Reference Materials (GRMs) confirmed that the long-term external precision of delta Eu-153/151 is better than 0.04 parts per thousand (2 standard deviation (2SD)), which represents a 2-5-fold increase in precision compared to previously reported methods. Additionally, the high-precision Eu isotopic compositions of five GRMs, including basalts, andesite, syenite, and marine sediment, were measured. The high-precision Eu isotope techniques presented herein open up new avenues for Eu isotope geochemistry. |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:001311386100001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/81068]  |
| 专题 | 同位素地球化学国家重点实验室 |
| 通讯作者 | Bai, Jiang-Hao |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Guangzhou Marine Geol Survey, MNR Key Lab Marine Mineral Resources, Guangzhou 511458, Peoples R China 3.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Ctr Excellence Deep Earth Sci, State Key Lab Isotope Geochem, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Hao,Bai, Jiang-Hao,Liang, Xi-Rong,et al. A Chromatographic Approach for High-Precision Eu Isotope Analysis[J]. ANALYTICAL CHEMISTRY,2024,96(38):15102-15107. |
| APA | Wu, Hao.,Bai, Jiang-Hao.,Liang, Xi-Rong.,Lu, Xi-Bin.,Deng, Yi-Nan.,...&Wei, Gang-Jian.(2024).A Chromatographic Approach for High-Precision Eu Isotope Analysis.ANALYTICAL CHEMISTRY,96(38),15102-15107. |
| MLA | Wu, Hao,et al."A Chromatographic Approach for High-Precision Eu Isotope Analysis".ANALYTICAL CHEMISTRY 96.38(2024):15102-15107. |
入库方式： OAI收割
来源：广州地球化学研究所
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