Measurement of the Isotopic Composition of Molybdenum in Geological Samples by MC-ICP-MS using a Novel Chromatographic Extraction Technique

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	Measurement of the Isotopic Composition of Molybdenum in Geological Samples by MC-ICP-MS using a Novel Chromatographic Extraction Technique
	Li, J ; Liang, XR ; Zhong, LF ; Wang, XC ; Ren, ZY ; Sun, SL ; Zhang, ZF ; Xu, JF
刊名	GEOSTANDARDS AND GEOANALYTICAL RESEARCH
	2014
卷号	38 期号:3 页码:345-354
关键词	molybdenum isotopes N-benzoyl-N-phenylhydroxylamine extraction chromatography preconcentration double spike MC-ICP-MS
ISSN号	1639-4488
通讯作者	jieli@gig.ac.cn
中文摘要	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.
学科主题	Geochemistry & Geophysics
收录类别	SCI
资助信息	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)
原文出处	WILEY-BLACKWELL
WOS记录号	WOS:000342754900008
公开日期	2014-12-11
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/10605]
专题	南海海洋研究所_中科院边缘海地质重点实验室
推荐引用方式 GB/T 7714	Li, J,Liang, XR,Zhong, LF,et al. Measurement of the Isotopic Composition of Molybdenum in Geological Samples by MC-ICP-MS using a Novel Chromatographic Extraction Technique[J]. GEOSTANDARDS AND GEOANALYTICAL RESEARCH,2014,38(3):345-354.
APA	Li, J.,Liang, XR.,Zhong, LF.,Wang, XC.,Ren, ZY.,...&Xu, JF.(2014).Measurement of the Isotopic Composition of Molybdenum in Geological Samples by MC-ICP-MS using a Novel Chromatographic Extraction Technique.GEOSTANDARDS AND GEOANALYTICAL RESEARCH,38(3),345-354.
MLA	Li, J,et al."Measurement of the Isotopic Composition of Molybdenum in Geological Samples by MC-ICP-MS using a Novel Chromatographic Extraction Technique".GEOSTANDARDS AND GEOANALYTICAL RESEARCH 38.3(2014):345-354.