A new method for the separation of LREEs in geological materials using a single TODGA resin column and its application to the determination of Nd isotope compositions by MC-ICPMS
A new method for the separation of LREEs in geological materials using a single TODGA resin column and its application to the determination of Nd isotope compositions by MC-ICPMS
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单TODGA树脂柱分离地质材料中轻稀土元素的新方法及其在MC-ICPMS测定Nd同位素组成中的应用
DOI：
10.1039/c7ay00966f
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发表时间：
2017-06
影响因子：
3.1
通讯作者：
Yue Yahui
中科院分区：
文献类型：
--
作者：
Wang Yuqiong;Huang Xiaoxiao;Sun Yali;Zhao Shouqian;Yue Yahui
建立了一种利用TODGA萃取树脂单柱纯化地质样品中Nd的新方法，并利用多收集器电感耦合等离子体质谱（MC-ICPMS）精确测定Nd同位素比率。样品用HF-HNO3消化，然后转移到3 M HNO3溶液中。将溶液装入TODGA树脂柱后，先用12ml 2.3 M HCl洗脱柱，然后用8ml 1.2 M HCl洗脱柱。用MC-ICPMS测定了后一种洗脱液的Nd同位素比值。通过测定认证标准物质BHVO-2、BCR-2和AGV-2的143Nd/144Nd比值（平均值±2σ）对分离方法进行验证，分别为0.512989±0.000012、0.512635±0.000012和0.512790±0.000018，与认证值和文献值吻合良好。
A new method was developed for the purification of Nd in geological samples using a single column containing TODGA extraction resin and the precise determination of Nd isotope ratios by multicollector inductively coupled plasma-mass spectrometry (MC-ICPMS). The samples were digested with HF–HNO3 and then transferred to a solution of 3 M HNO3. After loading the solutions onto the TODGA resin column, the column was first eluted with 12 ml of 2.3 M HCl, followed by 8 ml of 1.2 M HCl. The Nd isotope ratios of the latter eluate were measured by MC-ICPMS. This separation procedure was validated by measuring the 143Nd/144Nd ratios (mean ± 2σ) of certified reference materials, BHVO-2, BCR-2 and AGV-2, which were determined to be 0.512989 ± 0.000012, 0.512635 ± 0.000012 and 0.512790 ± 0.000018, respectively, in good agreement with the certified and literature values.
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影响因子：
3.9
作者：
Zhenbing She;Changqian Ma;R. Mason;Jian-wei Li;Guocan Wang;Yuhong Lei
通讯作者：
Zhenbing She;Changqian Ma;R. Mason;Jian-wei Li;Guocan Wang;Yuhong Lei
影响因子：
3.9
作者：
Hongfei Zhang;Shan Gao;Z. Zhong;Ben-ren Zhang;Li Zhang;Shenhong Hu
通讯作者：
Hongfei Zhang;Shan Gao;Z. Zhong;Ben-ren Zhang;Li Zhang;Shenhong Hu
影响因子：
3.9
作者：
Pourmand, Ali;Dauphas, Nicolas;Ireland, Thomas J.
通讯作者：
Ireland, Thomas J.
影响因子：
3.4
作者：
J. Zhang;N. Dauphas;A. Davis;A. Pourmand
通讯作者：
J. Zhang;N. Dauphas;A. Davis;A. Pourmand
影响因子：
3.4
作者：
Chaofeng Li;Xian‐Hua Li;Qiulong Li;Jing-hui Guo;Xianghui Li
通讯作者：
Chaofeng Li;Xian‐Hua Li;Qiulong Li;Jing-hui Guo;Xianghui Li