A single-column and efficient procedure for separating Fe and Mg from geological materials for isotopic analyses using MC-ICP-MS
文献类型：期刊论文
| 作者 | Zhu, Guanhong1; Ge, Zhenmin1,2; Zhang, Le1; Wei, Gangjian1; Ma, Jinlong1
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| 刊名 | JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
 |
| 出版日期 | 2024-10-30 |
| 卷号 | 39期号:11页码:2783-2790 |
| ISSN号 | 0267-9477 |
| DOI | 10.1039/d4ja00272e |
| 英文摘要 | Fe and Mg isotopes have increasingly served as combined proxies for geological processes. Fe and Mg isotope determination requires consuming different splits of samples and multi-column chromatographic purification to obtain pure Mg and Fe fractions in conventional chemical procedures, which is time-consuming and not suitable for rare and valuable samples. This study presents a novel and efficient chromatographic procedure to purify both Fe and Mg from geological matrices, using a single column loaded with AGMP-50 resin, followed by precise measurements of Fe and Mg isotopes by multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS). In our experiment, the Fe fraction was first collected using 7 mL of a mixture of 0.2 M HCl and 0.5 M HF, and then the Mg fraction was collected using 9 mL of 1.3 M HCl. This procedure is suitable for processing different types of rock samples and enabling an Fe recovery of >98% and full recovery of Mg, with effective removal of matrix elements such as Al, Ti, Na, K, Ca, and other trace elements. Using this method, the Fe and Mg isotopic compositions of various geological reference materials were reported. All of the Fe and Mg isotopic analytical results were in agreement with the reported data within analytical uncertainties, verifying that the method established here is robust and reproducible. Thus, this procedure will serve as a great option for obtaining both Fe and Mg isotopic compositions of geological samples and tracing geochemical or astrochemical processes in the future. |
| WOS研究方向 | Chemistry ; Spectroscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:001334823500001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/81243]  |
| 专题 | 同位素地球化学国家重点实验室 |
| 通讯作者 | Ma, Jinlong |
| 作者单位 | 1.Chinese Acad Sci, CAS Ctr Excellence Deep Earth Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Guanhong,Ge, Zhenmin,Zhang, Le,et al. A single-column and efficient procedure for separating Fe and Mg from geological materials for isotopic analyses using MC-ICP-MS[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2024,39(11):2783-2790. |
| APA | Zhu, Guanhong,Ge, Zhenmin,Zhang, Le,Wei, Gangjian,&Ma, Jinlong.(2024).A single-column and efficient procedure for separating Fe and Mg from geological materials for isotopic analyses using MC-ICP-MS.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,39(11),2783-2790. |
| MLA | Zhu, Guanhong,et al."A single-column and efficient procedure for separating Fe and Mg from geological materials for isotopic analyses using MC-ICP-MS".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 39.11(2024):2783-2790. |
入库方式： OAI收割
来源：广州地球化学研究所
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