...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of mass spectrometry >Combined chemical separation of Lu, Hf, Rb, Sr, Sm and Nd from a single rock digest and precise and accurate isotope determinations of Lu-Hf, Rb-Sr and Sm-Nd isotope systems using Multi-Collector ICP-MS and TIMS
【24h】

Combined chemical separation of Lu, Hf, Rb, Sr, Sm and Nd from a single rock digest and precise and accurate isotope determinations of Lu-Hf, Rb-Sr and Sm-Nd isotope systems using Multi-Collector ICP-MS and TIMS

机译：结合从单一岩石消化物中化学分离Lu，Hf，Rb，Sr，Sm和Nd的方法，并使用Multi-Collector ICP-MS和TIMS对Lu-Hf，Rb-Sr和Sm-Nd同位素系统进行精确准确的同位素测定

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A combined procedure for separating Lu, Hf, Rb, Sr, Sm and Nd from a single sample digestion is presented in this paper. The procedure consists of the following four steps: (1) sample dissolution in a mixture of concentrated HF-HNO3-HClO4; (2) Lu and Hf separation from the Rb, Sr, LMREE and other matrix elements by HF-free extraction chromatography: (3) Rb, Sr and LMREE separation from other matrix elements using a cation-exchange resin; (4) Sm and Nd separation from others LMREE by extraction chromatography. Analytical feasibility, flexibility and reproducibility of Rb-Sr. Sm-Nd and Lu-Hf isotope systems are demonstrated for international standard solutions and Certified Reference Materials (CRMs). Results show good agreement with previously reported values by isotope dilution methods, indicating the technique has fewer problems in respect to well-known sample inhomogeneity of natural geological materials and demonstrating its potential application to the study of limited and precious terrestrial rocks or minerals (like peridotite, kimberlite and xenoliths) and extra-terrestrial samples (like lunar rock and meteorites).
机译：本文提出了从单个样品消解中分离Lu，Hf，Rb，Sr，Sm和Nd的组合程序。该程序包括以下四个步骤：（1）将样品溶解在浓HF-HNO3-HClO4的混合物中; （2）通过无HF萃取色谱法从Rb，Sr，LMREE和其他基质元素中分离出Lu和Hf：（3）使用阳离子交换树脂从其他基质元素中分离Rb，Sr和LMREE; （4）通过萃取色谱分离LMm和Sm和Nd。 Rb-Sr的分析可行性，灵活性和可重复性。演示了Sm-Nd和Lu-Hf同位素系统用于国际标准解决方案和经认证的参考材料（CRM）。结果表明与同位素稀释法先前报道的值有很好的一致性，表明该技术在天然地质材料的已知样品不均一性方面存在较少的问题，并证明了其在研究有限和珍贵的陆地岩石或矿物（如橄榄岩）中的潜在应用，金伯利岩和异种岩）和地外样品（例如月球岩石和陨石）。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号