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Separation of magnesium from meteorites and terrestrial silicate rocks for high-precision isotopic analysis using multiple collector-inductively coupled plasma-mass spectrometry

文献类型：期刊论文

作者Wang, Guiqin2; Lin, Yangting1; Liang, Xirong2; Liu, Ying2; Xie, Liewen1; Yang, Yueheng1; Tu, Xianglin2
刊名JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
出版日期2011
卷号26期号:9页码:1878-1886
ISSN号0267-9477
DOI10.1039/c0ja00275e
文献子类Article
英文摘要We report a modified procedure for separating Mg and Al from meteorites and terrestrial igneous rocks for high-precision analysis of Mg isotopes with multiple collector-inductively coupled plasma-mass spectrometry. The separating procedure was carried out in a single ion-exchange column filled with AG50W-X12 resin, and Mg was eluted with 1 M HNO3, followed by Al eluted with 4M HNO3. The modified procedure efficiently eliminates most matrix elements (except for Ni, Co, and Cu) with a recovery yield of Mg >99%. Measurements of Ni-, Co-, and Cu-bearing simulation solutions revealed no detectable matrix effects. However, test runs demonstrated significant mass-dependent fractionation during the chromatographic process; consequently, a high recovery yield of Mg (>99%) is required to limit the deviation to less than 0.05 parts per thousand. Furthermore, analysis of Mg standard solution with a wide range of concentrations demonstrated negligible deviation for samples with concentrations of 0.3-2.5 mu g ml(-1) Mg relative to Mg standard solution concentrations of 1 mu g ml(-1) Mg. The total procedure bank is less than 2 ng. The long-term reproducibility of instrumental measurements of Mg isotopes is +/- 0.05 parts per thousand for delta Mg-25, +/- 0.10 parts per thousand for delta Mg-26, and +/- 0.06 parts per thousand for delta Mg-26* (2 SD, n = 211), based on analyzing five pure Mg standard solutions. Analysis of three chondrites and seven igneous rock standards showed ranges of delta Mg-26((DSM3)) from 0.02 parts per thousand to 0.30 parts per thousand for the former and from 0.03 parts per thousand to 0.30 parts per thousand for the latter. This method is simple and actionable.
WOS关键词EARLY SOLAR-SYSTEM ; MC-ICP-MS ; REFRACTORY INCLUSIONS ; FRACTIONATION ; MG ; MANTLE ; TITANIUM ; OLIVINE ; CALCIUM ; RATIOS
WOS研究方向Chemistry ; Spectroscopy
语种英语
WOS记录号WOS:000294013900023
出版者ROYAL SOC CHEMISTRY
资助机构Chinese Academy of Sciences(kzcx2-yw-Q08 ; Chinese Academy of Sciences(kzcx2-yw-Q08 ; Natural Science Foundation of China(40873054) ; Natural Science Foundation of China(40873054) ; GIGCX-09-0301) ; GIGCX-09-0301) ; Chinese Academy of Sciences(kzcx2-yw-Q08 ; Chinese Academy of Sciences(kzcx2-yw-Q08 ; Natural Science Foundation of China(40873054) ; Natural Science Foundation of China(40873054) ; GIGCX-09-0301) ; GIGCX-09-0301) ; Chinese Academy of Sciences(kzcx2-yw-Q08 ; Chinese Academy of Sciences(kzcx2-yw-Q08 ; Natural Science Foundation of China(40873054) ; Natural Science Foundation of China(40873054) ; GIGCX-09-0301) ; GIGCX-09-0301) ; Chinese Academy of Sciences(kzcx2-yw-Q08 ; Chinese Academy of Sciences(kzcx2-yw-Q08 ; Natural Science Foundation of China(40873054) ; Natural Science Foundation of China(40873054) ; GIGCX-09-0301) ; GIGCX-09-0301)
源URL[http://ir.iggcas.ac.cn/handle/132A11/73736]  
专题中国科学院地质与地球物理研究所
通讯作者Lin, Yangting
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earths Deep Interior, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Guiqin,Lin, Yangting,Liang, Xirong,et al. Separation of magnesium from meteorites and terrestrial silicate rocks for high-precision isotopic analysis using multiple collector-inductively coupled plasma-mass spectrometry[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2011,26(9):1878-1886.
APA Wang, Guiqin.,Lin, Yangting.,Liang, Xirong.,Liu, Ying.,Xie, Liewen.,...&Tu, Xianglin.(2011).Separation of magnesium from meteorites and terrestrial silicate rocks for high-precision isotopic analysis using multiple collector-inductively coupled plasma-mass spectrometry.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,26(9),1878-1886.
MLA Wang, Guiqin,et al."Separation of magnesium from meteorites and terrestrial silicate rocks for high-precision isotopic analysis using multiple collector-inductively coupled plasma-mass spectrometry".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 26.9(2011):1878-1886.

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来源：地质与地球物理研究所

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