A re-assessment of nickel-doping method in iron isotope analysis on rock samples using multi-collector inductively coupled plasma mass spectrometry
文献类型：CNKI期刊论文
| 作者 | Hongmei Gong; Pengyuan Guo; Shuo Chen; Meng Duan; Pu Sun ; Xiaohong Wang; Yaoling Niu
|
| 发表日期 | 2020-06-04 |
| 出处 | Acta Geochimica
 |
| 关键词 | Fe isotope Ni-doping Stable isotope Precision and accuracy Mass bias correction Pseudo-high mass resolution |
| 英文摘要 | Element doping has been proved to be a useful method to correct for the mass bias fractionation when analyzing iron isotope compositions.We present a systematic re-assessment on how the doped nickel may affect the iron isotope analysis in this study by carrying out several experiments.We find three important factors that can affect the analytical results,including the Ni:Fe ratio in the analyte solutions,the match of the Ni:Fe ratio between the unknown sample and standard solutions,and the match of the Fe concentration between the sample and standard solutions.Thus,caution is required when adding Ni to the analyte Fe solutions before analysis.Using our method,theδ~(56)Fe and δ~(57)Fe values of the USGS standards W-2 a,BHVO-2,BCR-2,AGV-2 and GSP-2 are consistent with the recommended literature values,and the long-term(one year) external reproducibility is better than 0.03 and 0.05‰(2 SD) for δ~(56)Fe and δ~(57)Fe,respectively.Therefore,the analytical method established in our laboratory is a method of choice for high quantity Fe isotope data in geological materials. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | supported by National Nature Science Foundation of China (Grant Numbers 41776067 and 41630968) |
| 卷 | v.39期:03页:77-86 |
| 语种 | 英文; |
| 分类号 | P585 |
| ISSN号 | 2096-0956 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/188196]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.KeyLaboratoryofMarineGeologyandEnvironment,InstituteofOceanology,ChineseAcademyofSciences 2.QingdaoNationalLaboratoryforMarineScienceandTechnology 3.InstituteofOceanology,ChineseAcademyofSciences 4.DepartmentofEarthSciences,DurhamUniversity 5.SchoolofEarthScienceandResources,ChinaUniversityofGeosciences |
| 推荐引用方式 GB/T 7714 | Hongmei Gong,Pengyuan Guo,Shuo Chen,et al. A re-assessment of nickel-doping method in iron isotope analysis on rock samples using multi-collector inductively coupled plasma mass spectrometry. 2020. |
入库方式： OAI收割
来源：海洋研究所
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