Precise isotopic measurements of sub-nanogram Nd of standard reference material by thermal ionization mass spectrometry using the NdO+ technique
文献类型：期刊论文
| 作者 | Li, Chao-Feng; Chen, Fukun; Li, Xiang-Hui |
| 刊名 | INTERNATIONAL JOURNAL OF MASS SPECTROMETRY
 |
| 出版日期 | 2007-10-01 |
| 卷号 | 266期号:1-3页码:34-41 |
| 关键词 | NdO+ technique chromatography sub-nanogram sample isobaric interference |
| ISSN号 | 1387-3806 |
| DOI | 10.1016/j.ijms.2007.06.013 |
| 文献子类 | Article |
| 英文摘要 | The Sm-Nd isotopic system, one of the important techniques for dating and geochemical tracing, has been widely used in geosciences. Precise and accurate measurements of Nd isotopic ratios are more difficult to achieve for microsamples that contain less than 50 ng Nd, when routine Nd+ technique is applied on thermal ionization mass spectrometer (TIMS). Compared to Nd+ technique, the NdO+ technique, owing to more efficient ionization, is a better choice for high precision measurements of Nd isotopic ratios of micro- or low-content samples. This study presents measurement results of sub-nanogram size samples of standard reference solution and rock-powder using NdO+ technique on the latest TIMS (GV product IsoProbe-T). Sixteen rock-powder references and four reference solutions were measured both by NdO+ and Nd+ techniques for an evaluation of accuracy and precision of measurements obtained by the NdO+ technique. Results show that analytical precision and reproducibility of NdO+ measurements of sub-nanogram Nd is comparable with those obtained by the Nd+ measurements of samples containing 200 ng Nd. Internal precision of the Nd-143/Nd-144 ratios achieved with both techniques is better than 0.003%. Our results show that the microsample NdO+ technique is a very promising method for high resolution Sm-Nd geochronology and isotopic tracing. (C) 2007 Elsevier B.V. All rights reserved. |
| WOS关键词 | ROCK REFERENCE SAMPLES ; RARE-EARTH-ELEMENTS ; REFERENCE MATERIALS BCR-1 ; SM-ND ; EXTRACTION CHROMATOGRAPHY ; NEODYMIUM ISOTOPES ; MEDITERRANEAN-SEA ; RATIOS ; SR ; SEPARATION |
| WOS研究方向 | Physics ; Spectroscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:000249944500005 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/67314]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Chen, Fukun |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Lab Radiogen Isotope Geochem, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithosphere Evolut, Beijing 100029, Peoples R China 3.Grad Univ, Chinese Acad Sci, Sch Earth Sci, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Chao-Feng,Chen, Fukun,Li, Xiang-Hui. Precise isotopic measurements of sub-nanogram Nd of standard reference material by thermal ionization mass spectrometry using the NdO+ technique[J]. INTERNATIONAL JOURNAL OF MASS SPECTROMETRY,2007,266(1-3):34-41. |
| APA | Li, Chao-Feng,Chen, Fukun,&Li, Xiang-Hui.(2007).Precise isotopic measurements of sub-nanogram Nd of standard reference material by thermal ionization mass spectrometry using the NdO+ technique.INTERNATIONAL JOURNAL OF MASS SPECTROMETRY,266(1-3),34-41. |
| MLA | Li, Chao-Feng,et al."Precise isotopic measurements of sub-nanogram Nd of standard reference material by thermal ionization mass spectrometry using the NdO+ technique".INTERNATIONAL JOURNAL OF MASS SPECTROMETRY 266.1-3(2007):34-41. |
入库方式： OAI收割
来源：地质与地球物理研究所
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