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学科主题: Geochemistry & Geophysics
题名: Measurement of the Isotopic Composition of Molybdenum in Geological Samples by MC-ICP-MS using a Novel Chromatographic Extraction Technique
作者: Li, J ; Liang, XR ; Zhong, LF ; Wang, XC ; Ren, ZY ; Sun, SL ; Zhang, ZF ; Xu, JF
通讯作者: jieli@gig.ac.cn
关键词: molybdenum isotopes ; N-benzoyl-N-phenylhydroxylamine ; extraction chromatography ; preconcentration ; double spike ; MC-ICP-MS
刊名: GEOSTANDARDS AND GEOANALYTICAL RESEARCH
发表日期: 2014
卷: 38, 期:3, 页:345-354
收录类别: sci
部门归属: [Li, Jie ; Liang, Xi-Rong ; Ren, Zhong-Yuan ; Sun, Sheng-Ling ; Zhang, Zhao-Feng ; Xu, Ji-Feng] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China ; [Zhong, Li-Feng] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China ; [Wang, Xuan-Ce] Curtin Univ, ARC Ctr Excellence Core Crust Fluid Syst CCFS, Perth, WA 6845, Australia ; [Wang, Xuan-Ce] Curtin Univ, Inst Geosci Res TIGeR, Perth, WA 6845, Australia
项目归属: 海洋地质
资助者: State Key Laboratory of Isotope Geochemistry [SKLIG-JY-12-03]; National Science Foundation of China [41173038, 41203010]; ARC ESTART Fellowship through ARC Centre of Excellence for Core to Crust Fluid Systems (CCFS)
摘要: A novel preconcentration method is presented for the determination of Mo isotope ratios by multi-collector inductively coupled plasma-mass spectrometry (MC-ICP-MS) in geological samples. The method is based on the separation of Mo by extraction chromatography using N-benzoyl-N-phenylhydroxylamine (BPHA) supported on a microporous acrylic ester polymeric resin (Amberlite CG-71). By optimising the procedure, Mo could be simply and effectively separated from virtually all matrix elements with a single pass through a small volume of BPHA resin (0.5ml). This technique for separation and enrichment of Mo is characterised by high selectivity, column efficiency and recovery (similar to 100%), and low total procedural blank (similar to 0.18ng). A Mo-100-Mo-97 double spike was mixed with samples before digestion and column separation, which enabled natural mass-dependent isotopic fractionation to be determined with a measurement reproducibility of <0.09 (Mo-98/95, 2s) by MC-ICP-MS. The mean Mo-98/95(SRM) (3134) (NIST SRM 3134 Mo reference material; Lot No. 891307) composition of the IAPSO seawater reference material measured in this study was 2.00 +/- 0.03 parts per thousand (2s, n=3), which is consistent with previously published values. The described procedure facilitated efficient and rapid Mo isotopic determination in various types of geological samples.
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WOS记录号: WOS:000342754900008
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10605
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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Li, J; Liang, XR; Zhong, LF; Wang, XC; Ren, ZY; Sun, SL; Zhang, ZF; Xu, JF.Measurement of the Isotopic Composition of Molybdenum in Geological Samples by MC-ICP-MS using a Novel Chromatographic Extraction Technique,GEOSTANDARDS AND GEOANALYTICAL RESEARCH,2014,38(3):345-354
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