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High-Precision Nd-143/Nd-144 Ratios from NdO+ Data Corrected with in-Run Measured Oxygen Isotope Ratios

文献类型：期刊论文

作者Chu, Zhu-Yin1; Li, Chao-Feng1; Hegner, Ernst2,3; Chen, Zhi1,4; Yan, Yan1,4; Guo, Jing-Hui1
刊名ANALYTICAL CHEMISTRY
出版日期2014-11-18
卷号86期号:22页码:11141-11150
ISSN号0003-2700
DOI10.1021/ac502197u
文献子类Article
英文摘要The NdO+ technique has been considerably refined in recent years for high precision measurement of Nd isotope ratios in low-level samples (1-5 ng Nd). As oxygen isotopic compositions may vary significantly with experimental conditions such as filament material, ionization enhancer and the ambient oxygen in the ion source, great "care" should be taken for using correct oxygen isotopic compositions to do the isobaric oxide corrections for the "conventional" NdO+ method. Our method presented here for NdO+ data reduction and PIO+ interference corrections uses the oxygen isotope composition determined in each cycle of the NdO+ measurements. For that purpose, we measured the small ion signals of (NdO+)-Nd-18-O-17 and (NdO+)-Nd-150-O-18 with amplifiers equipped with 10(12) Omega feedback resistors, and those of (NdO+)-O-16 ion beams with 10(11) Omega amplifiers. Using 10(12) Omega amplifiers facilitates a precise measurement of the very small (NdO+)-Nd-150-O-17 and 'Neat ion signals and calculation of highly accurate and precise Nd-143/Nd-144 isotope ratios. The Nd-143/Nd-144 ratios for JNdi-1 standards and several whole rock reference materials determined with the method on 4 ng of Nd loads are consistent with previously reported values within analytical error, with internal and external precision (2 RSE and 2 RSD) of better than 20 and 30 pprn, respectively.
WOS关键词IONIZATION MASS-SPECTROMETRY ; RARE-EARTH-ELEMENTS ; MARTIAN METEORITES ; SILICATE ROCKS ; ICP-MS ; RB-SR ; SM ; TIMS ; SYSTEMATICS ; SEPARATION
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000345263300024
出版者AMER CHEMICAL SOC
资助机构Natural Science Foundation of China (NSFC)(41273018 ; Natural Science Foundation of China (NSFC)(41273018 ; Natural Science Foundation of China (NSFC)(41273018 ; Natural Science Foundation of China (NSFC)(41273018 ; 41373020) ; 41373020) ; 41373020) ; 41373020) ; Natural Science Foundation of China (NSFC)(41273018 ; Natural Science Foundation of China (NSFC)(41273018 ; Natural Science Foundation of China (NSFC)(41273018 ; Natural Science Foundation of China (NSFC)(41273018 ; 41373020) ; 41373020) ; 41373020) ; 41373020) ; Natural Science Foundation of China (NSFC)(41273018 ; Natural Science Foundation of China (NSFC)(41273018 ; Natural Science Foundation of China (NSFC)(41273018 ; Natural Science Foundation of China (NSFC)(41273018 ; 41373020) ; 41373020) ; 41373020) ; 41373020) ; Natural Science Foundation of China (NSFC)(41273018 ; Natural Science Foundation of China (NSFC)(41273018 ; Natural Science Foundation of China (NSFC)(41273018 ; Natural Science Foundation of China (NSFC)(41273018 ; 41373020) ; 41373020) ; 41373020) ; 41373020)
源URL[http://ir.iggcas.ac.cn/handle/132A11/85208]  
专题中国科学院地质与地球物理研究所
通讯作者Chu, Zhu-Yin
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Ludwig Maximilians Univ Munchen, Dept Earth & Environm Sci, D-80333 Munich, Germany
3.Ludwig Maximilians Univ Munchen, GeoBioCtr, D-80333 Munich, Germany
4.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Chu, Zhu-Yin,Li, Chao-Feng,Hegner, Ernst,et al. High-Precision Nd-143/Nd-144 Ratios from NdO+ Data Corrected with in-Run Measured Oxygen Isotope Ratios[J]. ANALYTICAL CHEMISTRY,2014,86(22):11141-11150.
APA Chu, Zhu-Yin,Li, Chao-Feng,Hegner, Ernst,Chen, Zhi,Yan, Yan,&Guo, Jing-Hui.(2014).High-Precision Nd-143/Nd-144 Ratios from NdO+ Data Corrected with in-Run Measured Oxygen Isotope Ratios.ANALYTICAL CHEMISTRY,86(22),11141-11150.
MLA Chu, Zhu-Yin,et al."High-Precision Nd-143/Nd-144 Ratios from NdO+ Data Corrected with in-Run Measured Oxygen Isotope Ratios".ANALYTICAL CHEMISTRY 86.22(2014):11141-11150.

入库方式： OAI收割

来源：地质与地球物理研究所

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