A single-stage anion exchange separation method for Cd isotopic analysis in geological and environmental samples by MC-ICP-MS
文献类型：期刊论文
| 作者 | Zhong, Qiao-Hui1,2,7; Yin, Lu3; Li, Jie2,7 ; Feng, Yue-Xing4,6; Shen, Neng-Ping5; Peng, Bing-Yu1,2,7; Wang, Zhao-Yang1,2,7
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| 刊名 | JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
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| 出版日期 | 2023-11-01 |
| 卷号 | 38期号:11页码:2291-2301 |
| ISSN号 | 0267-9477 |
| DOI | 10.1039/d3ja00234a |
| 英文摘要 | AG-MP-1M anion exchange resin is commonly used to separate and purify Cd from geological and environmental samples. However, a second column using anion exchange, TRU Spec, or BPHA extraction resins is also required to further purify Cd from the residual Sn for high-precision Cd isotope ratio measurements. In this study, a new and efficient single-stage separation method using AG-MP-1M (100-200 mesh) anion exchange resin was developed to separate Cd from geological and environmental samples for high-precision Cd isotope ratio measurements. Most of the Sn (>99%) is effectively stripped from the resin using a 2 M HCl + 4 M HF mixed eluent, unlike commonly used separation protocols with AG-MP-1M anion exchange resin, which only removes similar to 65% of the Sn using HCl eluent. Furthermore, potential residual Sn is retained on the resin by elution of 0.04 M HCl + 2 M HF and 0.005 M HCl + 2 M HF, which allows quantitative collection of the Cd fraction (similar to 99.5%) without Sn tailing. The single-stage purification procedure takes advantage of the different affinities of Sn on AG-MP-1M anion exchange resin at different HCl and HF concentrations in mixed HCl + HF solutions, which allows direct and effective separation of Cd from Sn and other complex sample matrices. We used this procedure and the double-spike MC-ICP-MS method to determine the delta Cd-114/110(NIST SRM 3108) values for Mn nodule, igneous rock, shale, soil, and sediment reference materials, and obtained results that agree within analytical uncertainty with the values reported in previous studies. In addition, the delta Cd-114/110(NIST SRM 3108) values of soil (GSS-1a), sediment (GSD-4a), and dolomite (GSR-12) standard reference materials are reported for the first time in this paper. The described purification procedure allows efficient and rapid Cd isotopic analysis in different types of geological and environmental samples. |
| WOS研究方向 | Chemistry ; Spectroscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:001089252000001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/78731]  |
| 专题 | 同位素地球化学国家重点实验室 |
| 通讯作者 | Li, Jie |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100101, Peoples R China 2.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 3.Hebei GEO Univ, Hebei Key Lab Strateg Crit Mineral Resources, Shijiazhuang 050031, Hebei, Peoples R China 4.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519082, Peoples R China 5.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550081, Peoples R China 6.Univ Queensland, Sch Environm, Radiogen Isotope Facil, Brisbane, Qld 4072, Australia 7.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhong, Qiao-Hui,Yin, Lu,Li, Jie,et al. A single-stage anion exchange separation method for Cd isotopic analysis in geological and environmental samples by MC-ICP-MS[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2023,38(11):2291-2301. |
| APA | Zhong, Qiao-Hui.,Yin, Lu.,Li, Jie.,Feng, Yue-Xing.,Shen, Neng-Ping.,...&Wang, Zhao-Yang.(2023).A single-stage anion exchange separation method for Cd isotopic analysis in geological and environmental samples by MC-ICP-MS.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,38(11),2291-2301. |
| MLA | Zhong, Qiao-Hui,et al."A single-stage anion exchange separation method for Cd isotopic analysis in geological and environmental samples by MC-ICP-MS".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 38.11(2023):2291-2301. |
入库方式： OAI收割
来源：广州地球化学研究所
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