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Evaluation of plasma condition, concentration effect, position effect, and nickel-doping method on non-matrix-matched Fe isotopic analysis by femtosecond laser ablation multi-collector inductively coupled plasma mass spectrometry

文献类型：期刊论文

作者Xu, Lei1; Xie, Lie-Wen1; Wang, Hao1; Yang, Yue-Heng1; Huang, Chao1; Yang, Jin-Hui1,2; Wu, Shi-Tou1
刊名SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
出版日期2022-03-01
卷号189页码:9
ISSN号0584-8547
关键词Fe isotopes Fs LA-MC-ICP-MS Plasma condition Mass bias correction Reference materials
DOI10.1016/j.sab.2022.106374
英文摘要This study investigated the influences of plasma condition, concentration effect, ablation position and on-line addition of an aqueous Ni standard for non-matrix-matched Fe isotopic analysis by femtosecond laser ablation multi-collector inductively coupled plasma mass spectrometry (fs LA-MC-ICP-MS). Deviations up to-0.7%o in delta Fe-56 values caused by non-matrix-matched analyses were difficult to eliminate under dry plasma condition even with fs-LA. However, the nebulized water after the ablation cell efficiently reduces or eliminates the matrix-dependent fractionation of Fe isotopes without reducing signal intensity. Furthermore, concentration-and position-dependent fractionation of Fe isotopes was not observed under wet plasma condition. For instrumental mass bias correction, the standard-sample bracketing (SSB) method and SSB with Ni doping (SSB + Ni) were performed in the presence of nebulized water with fs LA-MC-ICP-MS. Results indicate that both the SSB and SSB + Ni methods are sufficient to correct for instrumental mass bias under wet plasma condition, with the SSB + Ni method being more effective in calibrating short-term fluctuations in mass bias with improved external repro-ducibility of-0.15%o (2SD) for delta 56Fe values. Compared to SN-MC-ICP-MS, deteriorated precision offered by fs LA-MC-ICP-MS may represent a major limitation for some applications relying upon precise Fe isotope ratio measurements. This approach for non-matrix-matched analysis of Fe isotopes by fs LA-MC-ICP-MS under wet plasma condition combined with the SSB + Ni method allows for more flexibility in tracing detailed geological processes with large Fe isotope fractionation of a wide range of solids. Relatively precise and accurate Fe isotopic compositions of potential reference materials of Balmat pyrite (delta Fe-56 =-1.32 +/- 0.12%o, delta Fe-57 =-1.91 +/- 0.20%o; 2SD, n = 166) and PZH12-24 ilmenite (delta Fe-56 =-0.38 +/- 0.15%o, delta Fe-57 =-0.57 +/- 0.23%o; 2SD, n = 134) were obtained using this analytical protocol, consistent with reference values obtained by solution nebulization (SN)- MC-ICP-MS within analytical uncertainties (Balmat pyrite: delta Fe-56 =-1.30 +/- 0.04%o, delta Fe-57 =-1.94 +/- 0.07%o, 2SD, n = 3; PZH12-24 ilmenite: delta Fe-56 =-0.38 +/- 0.06%o, delta Fe-57 =-0.55 +/- 0.07%o, 2SD, n = 6).
WOS关键词MC-ICP-MS ; IN-SITU DETERMINATION ; HIGH-PRECISION FE ; RATIO MEASUREMENTS ; REFERENCE SAMPLE ; ATOMIC-WEIGHT ; ABUNDANCE RATIOS ; NM FEMTOSECOND ; IRON ISOTOPES ; BIAS
资助项目National Key R&D Program of China[2018YFA0702602] ; National Natural Science Foundation of China[42103030] ; Key Research Program of Chinese Academy of Sciences[ZDBS-SSW-JSC007-15] ; key research program of the Institute of Geology and Geophysics, Chinese Academy of Sciences[IGGCAS-202101] ; pre-research project on Civil Aerospace Technologies of China National Space Administration[D020203]
WOS研究方向Spectroscopy
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000789567700006
资助机构National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Chinese Academy of Sciences ; Key Research Program of Chinese Academy of Sciences ; key research program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; key research program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Chinese Academy of Sciences ; Key Research Program of Chinese Academy of Sciences ; key research program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; key research program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Chinese Academy of Sciences ; Key Research Program of Chinese Academy of Sciences ; key research program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; key research program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Chinese Academy of Sciences ; Key Research Program of Chinese Academy of Sciences ; key research program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; key research program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; pre-research project on Civil Aerospace Technologies of China National Space Administration
源URL[http://ir.iggcas.ac.cn/handle/132A11/105183]  
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Xu, Lei
作者单位1.Chinese Acad Sci, Innovat Acad Earth Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Lei,Xie, Lie-Wen,Wang, Hao,et al. Evaluation of plasma condition, concentration effect, position effect, and nickel-doping method on non-matrix-matched Fe isotopic analysis by femtosecond laser ablation multi-collector inductively coupled plasma mass spectrometry[J]. SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY,2022,189:9.
APA Xu, Lei.,Xie, Lie-Wen.,Wang, Hao.,Yang, Yue-Heng.,Huang, Chao.,...&Wu, Shi-Tou.(2022).Evaluation of plasma condition, concentration effect, position effect, and nickel-doping method on non-matrix-matched Fe isotopic analysis by femtosecond laser ablation multi-collector inductively coupled plasma mass spectrometry.SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY,189,9.
MLA Xu, Lei,et al."Evaluation of plasma condition, concentration effect, position effect, and nickel-doping method on non-matrix-matched Fe isotopic analysis by femtosecond laser ablation multi-collector inductively coupled plasma mass spectrometry".SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY 189(2022):9.

入库方式： OAI收割

来源：地质与地球物理研究所

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