A silica-related matrix effect on NanoSIMS Li isotopic analysis of glasses and its online calibration
文献类型：期刊论文
| 作者 | Li, Rui-Ying; Hao, Jialong; Yang, Wei; Tian, Heng-Ci; Hu, Sen; Lin, Yangting |
| 刊名 | JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
 |
| 出版日期 | 2023-10-04 |
| 卷号 | 38期号:10页码:12 |
| ISSN号 | 0267-9477 |
| DOI | 10.1039/d3ja00100h |
| 英文摘要 | Accurate Li isotope analysis of silicate glasses using secondary ion mass spectrometry (SIMS) is challenging due to the matrix effect, which causes instrumental mass fractionation (IMF). The characteristics of the matrix effect vary for each element, necessitating empirical correction methods. Here, we present Li isotopic measurements on a set of silicate glasses spanning a broad compositional range from ultramafic to highly siliceous using a Cameca NanoSIMS 50L. A radio-frequency (RF)-O primary beam with an intensity of 1 nA was rastered over a 5 x 5 mu m(2) area on the sample, and the secondary ions Li-6, Li-7 and Si-30 were simultaneously detected. We observed a significant matrix effect on delta Li-7 in the silicate glasses, which yielded an IMF of up to 19&, exceeding the analytical precision of <2.5& (1SD). The IMF is strongly correlated with the chemical compositions of the silicate glasses. To correct the matrix effect, we employed various correction schemes, including univariate and multivariable compositions. All results consistently indicated that silica exerted a dominant influence on the IMF. We then propose a straightforward "online" method to correct this silica-related matrix effect by utilizing simultaneously measured Si-30 signals. This strategy improves the accuracy of the Li isotope measurements to within 3(0)/(00) and can be widely applied to anhydrous subalkaline magmatic glasses with compositions ranging from ultramafic to highly siliceous. |
| WOS关键词 | DING REFERENCE GLASSES ; IN-SITU ; OXYGEN ISOTOPES ; TRACE-ELEMENTS ; HIGH-PRECISION ; LITHIUM ; FRACTIONATION ; ZIRCON ; DIFFUSION ; BORON |
| 资助项目 | National Natural Science Foundation of China[42103032] ; National Natural Science Foundation of China[42241103] ; National Natural Science Foundation of China[42173036] |
| WOS研究方向 | Chemistry ; Spectroscopy |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| WOS记录号 | WOS:001064625200001 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/110809]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Hao, Jialong |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Rui-Ying,Hao, Jialong,Yang, Wei,et al. A silica-related matrix effect on NanoSIMS Li isotopic analysis of glasses and its online calibration[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2023,38(10):12. |
| APA | Li, Rui-Ying,Hao, Jialong,Yang, Wei,Tian, Heng-Ci,Hu, Sen,&Lin, Yangting.(2023).A silica-related matrix effect on NanoSIMS Li isotopic analysis of glasses and its online calibration.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,38(10),12. |
| MLA | Li, Rui-Ying,et al."A silica-related matrix effect on NanoSIMS Li isotopic analysis of glasses and its online calibration".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 38.10(2023):12. |
入库方式： OAI收割
来源：地质与地球物理研究所
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