In situ Fe isotopic analyses of fourteen reference materials using a synthetic Cr standard for mass bias and isobaric interference corrections by femtosecond LA-MC-ICP-MS
文献类型：期刊论文
| 作者 | Xu, Lei2; Zhang, Wen1; Luo, Tao1; Yang, Jin-Hui2; Hu, Zhaochu1 |
| 刊名 | JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
 |
| 出版日期 | 2021-04-01 |
| 卷号 | 36期号:4页码:747-757 |
| ISSN号 | 0267-9477 |
| DOI | 10.1039/d0ja00465k |
| 英文摘要 | Highly precise and accurate measurements of Fe isotope ratios for fourteen reference materials from the USGS, MPI-DING and CGSG were successfully carried out using a developed analytical technique by fs LA-MC-ICP-MS. A synthetic standard, i.e., Cr-979S, was produced as a calibration standard for instrumental mass bias and isobaric interference corrections. The results for samples with low Cr concentration (Cr-54/Fe-54 < 0.0001), e.g., delta Fe-56 values of BCR-2G (delta Fe-56 = 0.12 +/- 0.10 parts per thousand, 2SD, n = 15), were in excellent agreement with data from solution MC-ICP-MS within the measurement precision without the use of the Cr-979S standard. For the samples with high Cr concentration (Cr-54/Fe-54 > 0.0001), e.g., BHVO-2G, delta Fe-56 values deviated from reference values when using the standard-sample bracketing method alone. Combining the standard-sample bracketing method with Cr-979S standard corrections and standard sample cone + H skimmer cone, the measured Fe isotopic compositions of GOR128-G and GOR132-G with extremely high Cr concentrations (Cr-54/Fe-54 > 0.01) were identical to reference values within errors (delta Fe-56 = -0.01 +/- 0.13 parts per thousand, 2SD, n = 18; delta Fe-56 = 0.00 +/- 0.13 parts per thousand, 2SD, n = 13; respectively). A series of reference materials with varying Cr concentrations, including the USGS reference glasses (BCR-2G, BHVO-2G, BIR-1G, TB-1G, NKT-1G, GSD-1G and GSE-1G), MPI-DING reference glasses (KL2-G, ML3B-G, GOR128-G and GOR132-G) and CGSG reference materials (CGSG-1 and CGSG-4), were used to test our developed method of in situ Fe isotopic measurements using the combined standard-sample bracketing method and Cr-979S standard corrections by fs LA-MC-ICP-MS. All the reference materials yield relatively homogeneous Fe isotopic compositions with delta Fe-56 values ranging from -0.03 parts per thousand to 0.13 parts per thousand and delta Fe-56 reproducibility is below 0.15 parts per thousand (2SD), suggesting that the proposed isobaric interference correction and mass bias correction method is a useful tool for providing high-quality in situ Fe isotopic data of geological samples with both low and high Cr concentrations. |
| WOS研究方向 | Chemistry ; Spectroscopy |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| WOS记录号 | WOS:000639586200006 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/101138]  |
| 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 | Hu, Zhaochu |
| 作者单位 | 1.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Lei,Zhang, Wen,Luo, Tao,et al. In situ Fe isotopic analyses of fourteen reference materials using a synthetic Cr standard for mass bias and isobaric interference corrections by femtosecond LA-MC-ICP-MS[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2021,36(4):747-757. |
| APA | Xu, Lei,Zhang, Wen,Luo, Tao,Yang, Jin-Hui,&Hu, Zhaochu.(2021).In situ Fe isotopic analyses of fourteen reference materials using a synthetic Cr standard for mass bias and isobaric interference corrections by femtosecond LA-MC-ICP-MS.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,36(4),747-757. |
| MLA | Xu, Lei,et al."In situ Fe isotopic analyses of fourteen reference materials using a synthetic Cr standard for mass bias and isobaric interference corrections by femtosecond LA-MC-ICP-MS".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 36.4(2021):747-757. |
入库方式： OAI收割
来源：地质与地球物理研究所
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