A new potential natural chalcopyrite reference material for in situ copper isotope microanalysis
文献类型：期刊论文
| 作者 | Fang, Yuan1; Yu, Hui-Min1,2; Xie, Lie-Wen3; Fang, Shu-Bin1; Huang, Fang1,2; Li, Wang-Ye1,2 |
| 刊名 | JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
 |
| 出版日期 | 2023-06-26 |
| 页码 | 8 |
| ISSN号 | 0267-9477 |
| DOI | 10.1039/d3ja00105a |
| 英文摘要 | Copper sulfide ore is one of the most important sources of Cu in nature. In situ Cu isotope analysis of sulfides is critical for providing useful information on the sources of Cu and tracking the process of sulfide precipitation. The accuracy of in situ Cu isotope analysis relies heavily on matrix-matched reference materials to correct the instrumental mass bias. In this study, a natural chalcopyrite (TQ-Ccp) from the Tianqiao Pb-Zn deposit (Guizhou Province, China) was evaluated as a potential reference material for Cu isotope microanalysis. Major element mapping and determination by electron probe microanalysis (EPMA) demonstrated that there was no internal growth or zonation within the TQ-Ccp chalcopyrite grains. The Cu isotope homogeneity of the chalcopyrite sample was tested by micro-drill sampling and solution multi-collector inductively coupled plasma-mass spectrometry (MC-ICP-MS) as well as by laser ablation MC-ICP-MS (LA-MC-ICP-MS). Thirty-two chalcopyrite powders were micro-drilled randomly from the whole hand specimen and from four fragments of chalcopyrite prepared in an epoxy mount, and measured by solution MC-ICP-MS. The dissolved chalcopyrite solutions processed with and without column chromatography yielded a mean & delta;Cu-65(NIST976) of 0.05 & PLUSMN; 0.03 & PTSTHOUSND; (2SD, n = 20) and 0.04 & PLUSMN; 0.03 & PTSTHOUSND; (2SD, n = 32), respectively, suggesting Cu isotope homogeneity at the whole specimen scale. The Cu isotope homogeneity at the micro-scale was further verified by LA-MC-ICP-MS analyses of the four chalcopyrite fragments in the epoxy mount. In summary, TQ-Ccp chalcopyrite is potentially a suitable reference material for in situ Cu isotope microanalysis, whose recommended & delta;Cu-65(NIST976) value is 0.04 & PLUSMN; 0.03 & PTSTHOUSND; (2SD, n = 52), as determined by solution MC-ICP-MS analyses. |
| WOS关键词 | CU ; DEPOSIT ; RATIOS ; PORPHYRY |
| 资助项目 | National Key Ramp;D Program of China[2018YFA0702600] |
| WOS研究方向 | Chemistry ; Spectroscopy |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| WOS记录号 | WOS:001023059000001 |
| 资助机构 | National Key Ramp;D Program of China ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/111285]  |
| 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, Wang-Ye |
| 作者单位 | 1.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei, Peoples R China 2.Univ Sci & Technol China, CAS Ctr Excellence Comparat Planetol, Hefei, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fang, Yuan,Yu, Hui-Min,Xie, Lie-Wen,et al. A new potential natural chalcopyrite reference material for in situ copper isotope microanalysis[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2023:8. |
| APA | Fang, Yuan,Yu, Hui-Min,Xie, Lie-Wen,Fang, Shu-Bin,Huang, Fang,&Li, Wang-Ye.(2023).A new potential natural chalcopyrite reference material for in situ copper isotope microanalysis.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,8. |
| MLA | Fang, Yuan,et al."A new potential natural chalcopyrite reference material for in situ copper isotope microanalysis".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY (2023):8. |
入库方式： OAI收割
来源：地质与地球物理研究所
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