Ce-Nd separation by solid-phase micro-extraction and its application to high-precision Nd-142/Nd-144 measurements using TIMS in geological materials

doi:10.1039/c4ja00328d

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 岩石圈演化国家重点实验室

	Ce-Nd separation by solid-phase micro-extraction and its application to high-precision Nd-142/Nd-144 measurements using TIMS in geological materials
	Li, Chao-Feng 1; Wang, Xuan-Ce 2; Li, You-Lian 1; Chu, Zhu-Yin 1; Guo, Jing-Hui 1; Li, Xiang-Hui 3
刊名	JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
	2015
卷号	30 期号:4 页码:895-902
DOI	10.1039/c4ja00328d
文献子类	Article
英文摘要	In view of the low initial abundance of Sm-146, Nd-142 anomalies are expected to be extremely small (less than 40 ppm), and their detection requires ultra-precise Nd-142/Nd-144 measurements. A rapid solid-phase micro-extraction (SPME) technique, using HEHEHP resin as sorbent, is established to completely separate Ce from rare earth element (REE) mixtures. This technique is applied to ultra-high-precision Nd-142/Nd-144 measurements in geological materials. In contrast to the traditional liquid-liquid micro-extraction (LLME) technique, the benefits of the SPME tandem column are high Nd recovery, low residual Ce (Ce/Nd < 10(-6)), and easy operability. In addition, a single HEHEHP resin column, replacing the traditional two-column scheme (AG 50W + HDEHP resins), is used to further purify Nd by removing Na salt and Sm isobaric interferences. All mean values of Ce-140/Nd-144 of geological samples after separation never exceed 0.000010 even though the Ce/Nd ratio of geological materials is >3.0. Thus, Ce-142 interferences on Nd-142 never exceed 1.3 ppm. Ultra-high-precision thermal ionization mass spectrometry analyses of silicate standards show that the internal precision of all runs are better than 4 ppm (2 RSE) for Nd-142/Nd-144 values. Nd-142/Nd-144 values for JNdi-1, JR-3, and BCR-2 have external precisions of +/- 4.8, +/- 4.4, and +/- 3.9 ppm (2 RSD), respectively. The external reproducibility is sufficient to distinguish and resolve 5 ppm anomalies in Nd-142/Nd-144 values.
WOS关键词	IONIZATION MASS-SPECTROMETRY ; ROCK REFERENCE SAMPLES ; SM-ND ; ND-142 EVIDENCE ; EARTHS MANTLE ; ICP-MS ; EARLY DIFFERENTIATION ; ISOTOPIC-RATIOS ; ARCHEAN ROCKS ; SR
WOS研究方向	Chemistry ; Spectroscopy
语种	英语
WOS记录号	WOS:000351766400007
资助机构	National Natural Science Foundation of China(41373020 ; National Natural Science Foundation of China(41373020 ; National Natural Science Foundation of China(41373020 ; National Natural Science Foundation of China(41373020 ; State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences(11301520) ; State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences(11301520) ; State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences(11301520) ; State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences(11301520) ; 41273018) ; 41273018) ; 41273018) ; 41273018) ; National Natural Science Foundation of China(41373020 ; National Natural Science Foundation of China(41373020 ; National Natural Science Foundation of China(41373020 ; National Natural Science Foundation of China(41373020 ; State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences(11301520) ; State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences(11301520) ; State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences(11301520) ; State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences(11301520) ; 41273018) ; 41273018) ; 41273018) ; 41273018)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/62570]
专题	地质与地球物理研究所_岩石圈演化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Curtin Univ, Inst Geosci Res TIGer, Perth, WA 6845, Australia 3.Henan Acad Sci Co Ltd, Isotope Res Inst, Zhengzhou 450052, Peoples R China
推荐引用方式 GB/T 7714	Li, Chao-Feng,Wang, Xuan-Ce,Li, You-Lian,et al. Ce-Nd separation by solid-phase micro-extraction and its application to high-precision Nd-142/Nd-144 measurements using TIMS in geological materials[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2015,30(4):895-902.
APA	Li, Chao-Feng,Wang, Xuan-Ce,Li, You-Lian,Chu, Zhu-Yin,Guo, Jing-Hui,&Li, Xiang-Hui.(2015).Ce-Nd separation by solid-phase micro-extraction and its application to high-precision Nd-142/Nd-144 measurements using TIMS in geological materials.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,30(4),895-902.
MLA	Li, Chao-Feng,et al."Ce-Nd separation by solid-phase micro-extraction and its application to high-precision Nd-142/Nd-144 measurements using TIMS in geological materials".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 30.4(2015):895-902.