| AG MP-1M阴离子分离Cu、Fe、Zn及其在Fe同位素测定上的应用 |
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| 引用本文： | 马信江,梁细荣,涂相林,曾文,李杰. AG MP-1M阴离子分离Cu、Fe、Zn及其在Fe同位素测定上的应用[J]. 地球化学, 2009, 38(5) |
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| 作者姓名： | 马信江 梁细荣 涂相林 曾文 李杰 |
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| 作者单位： | 中国科学院,广州地球化学研究所,同位素年代学与地球化学重点实验室,广东,广州,510640;中国科学院,研究生院,北京,100049;中国科学院,广州地球化学研究所,同位素年代学与地球化学重点实验室,广东,广州,510640 |
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| 基金项目： | 中国科学院知识创新工程重要方向项目 |
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| 摘 要： | 采用新型阴离子交换树脂AG MP-1M,分别以8.2 mol/L HCl+0.01%HF、4 mol/L HCl、2 mol/L HCI和0.5 mol/L HNO,可以有效分离地质样品中Cu、Co、Fe和Zn,克服了AG MP-1阴离子交换树脂分离Cu时Co随Cu同时淋洗下来,以及在分离Co含量较高的地质样品时Co和Cu需过二次柱分离的弊端.对花岗闪长岩等地质标样的研究结果表明,AG MP-1M阴离子交换树脂能有效分离Cu、Fe和Zn,并且它们的回收率均大于99%.标准样品经过离子交换分离后Fe同位素未发生分馏,可满足多接收器电感耦合等离子体质谱(MC-ICPMS)的同位素测定要求.
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| 关 键 词： | 铁 同位素组成 阴离子交换树脂 化学分离 多接收器电感耦合等离子体质谱法 |
Separation of Cu, Fe and Zn using AG MP-1M anion exchange resin and applications for Fe isotope determination |
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| MA Xin-jiang,LIANG Xi-rong,TU Xiang-lin,ZENG Wen,LI Jie. Separation of Cu, Fe and Zn using AG MP-1M anion exchange resin and applications for Fe isotope determination[J]. Geochimica, 2009, 38(5) |
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| Authors: | MA Xin-jiang LIANG Xi-rong TU Xiang-lin ZENG Wen LI Jie |
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| Affiliation: | MA Xin-jiang1,2,LIANG Xi-rong1*,TU Xiang-lin1,ZENG Wen1 and LI Jie1 1.Key Laboratory of Isotope Geochronology and Geochemistry,Guangzhou Institu te of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,China,2.Graduate University of Chinese Academy of Sciences,Beijing 100049 |
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| Abstract: | A new type of anion exchange resin, AG MP-1M, has been successfully applied to the chemical separation of Cu, Co, Fe and Zn from geological samples . Copper, Co, Fe and Zn are separated using 8.2 mol/L HCl+0.01%HF, 4 mol/L HCl , 2 mol/L HCl and 0.5 mol/L HNO3 as eluants, respectively. This method is better than the conventional method using AG MP-1 anion exchange resin, which require s a second step to better separate Cu and Co, especially for geological samples with high Co. Using this method, we separated... |
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| Keywords: | Iron isotope composition anion exchange resin chemical separation multi-collector inductively coupled plasma mass spectrometry (MC-ICPMS) |
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