An Improved Cr-EA-IRMS Method for the Effective Determination of the Hydrogen Isotopes in Coal Samples
文献类型：期刊论文
| 作者 | Li, Hongwei1,2; Feng, Lianjun1,2 |
| 刊名 | FRONTIERS IN CHEMISTRY
 |
| 出版日期 | 2022-04-07 |
| 卷号 | 10页码:6 |
| ISSN号 | 2296-2646 |
| 关键词 | Cr-EA-IRMS isotopes analysis hydrogen isotope mass spectrometry coal samples |
| DOI | 10.3389/fchem.2022.840473 |
| 英文摘要 | Hydrogen isotope analysis of coal is an important tool in the geochemical analysis of coal. The traditional method of hydrogen isotope analysis of coal requires the oxidation of organic matter bound hydrogen in coal to water by an oxidizing agent and then its reduction to hydrogen by a reducing agent. This method is time-consuming and laborious, and makes it difficult to cope with the rapid detection of large numbers of samples. The recent development of continuous flow IRMS systems (CF-IRMS) has solved the problem of inefficient analysis, but does not guarantee the quantitative conversion of organic bound H to H-2, resulting in inaccurate measured hydrogen isotope values. In this study, for the hydrogen isotope analysis of coal, an alternative continuous flow system (Cr-EA-IRMS) was used to achieve high precision hydrogen isotope measurements of coal samples by filling a quartz reaction tube with Cr. The results obtained by this method (-121.3 +/- 1.1 parts per thousand) for the reference material (GBW11104) are consistent with those obtained by the conventional method (-121.4 +/- 0.6 parts per thousand). Using this method, hydrogen isotope measurements for a variety of imported coals revealed significant differences in the hydrogen isotopes of coals from different coal producing regions including Russia, South East Asia, and Australia. Therefore, the use of hydrogen isotope testing analysis of coal could be a potential means of tracing the origin of coal. |
| WOS关键词 | CHROMIUM |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| 出版者 | FRONTIERS MEDIA SA |
| WOS记录号 | WOS:000791382800001 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/105174]  |
| 专题 | 地质与地球物理研究所_中国科学院矿产资源研究重点实验室 |
| 通讯作者 | Feng, Lianjun |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Hongwei,Feng, Lianjun. An Improved Cr-EA-IRMS Method for the Effective Determination of the Hydrogen Isotopes in Coal Samples[J]. FRONTIERS IN CHEMISTRY,2022,10:6. |
| APA | Li, Hongwei,&Feng, Lianjun.(2022).An Improved Cr-EA-IRMS Method for the Effective Determination of the Hydrogen Isotopes in Coal Samples.FRONTIERS IN CHEMISTRY,10,6. |
| MLA | Li, Hongwei,et al."An Improved Cr-EA-IRMS Method for the Effective Determination of the Hydrogen Isotopes in Coal Samples".FRONTIERS IN CHEMISTRY 10(2022):6. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。