An Improved Procedure for the Determination of Ferrous Iron Mass Fraction in Silicate Rocks Using a Schlenk Line-Based Digestion Apparatus to Exclude Oxygen
文献类型：期刊论文
| 作者 | Xue, Dingshuai; Wang, Hongyue; Liu, Yanhong; Xie, Liewen; Shen, Ping |
| 刊名 | GEOSTANDARDS AND GEOANALYTICAL RESEARCH
 |
| 出版日期 | 2017-09-01 |
| 卷号 | 41期号:3页码:411-425 |
| 关键词 | ferrous iron redox titration Schlenk line geological materials model experiment |
| ISSN号 | 1639-4488 |
| DOI | 10.1111/ggr.12164 |
| 文献子类 | Article |
| 英文摘要 | Precise and accurate determination of ferrous iron mass fraction in silicate rocks and geological reference materials is still a significant challenge due to the labile nature of the analyte. Here, we report a modified and improved procedure for the determination of ferrous iron mass fraction, capable of yielding moderately accurate and highly precise results in a relatively shorter time than before. This modified technique requires a more convenient operational procedure than the classical method. A sample digestion apparatus was designed that included a Schlenk line to expel air in order to prevent oxidation. The advantages of this procedure over the classical procedure are shorter process flow, higher efficiency and absence of an additional redox indicator. The composition of the acid matrix used to dissolve the samples as well as the incubation temperature and time was investigated. Comparative data for twenty-one reference materials are reported, with five of them reported for the first time by the Schlenk line procedure. A series of experiments were carried out to identify and minimise the main source of error. In addition, the possibility of eliminating the reducing substances before digestion, by pretreatment of the sample by cold 10% methanolic bromine, was also studied. |
| WOS关键词 | ELEMENTAL CONCENTRATION DATA ; REFERENCE SAMPLES ; OXIDATION-STATE ; 1987 COMPILATION ; MINERALS ; VALUES ; SERIES ; DISSOLUTION ; FUGACITY ; MANTLE |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000407274900007 |
| 出版者 | WILEY |
| 资助机构 | National Nature Science Foundation of China(41403021 ; Open Research Foundation of the Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences(12) ; 41473012 ; 21207142) ; National Nature Science Foundation of China(41403021 ; Open Research Foundation of the Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences(12) ; 41473012 ; 21207142) ; National Nature Science Foundation of China(41403021 ; Open Research Foundation of the Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences(12) ; 41473012 ; 21207142) ; National Nature Science Foundation of China(41403021 ; Open Research Foundation of the Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences(12) ; 41473012 ; 21207142) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/61834]  |
| 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 | Xue, Dingshuai |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xue, Dingshuai,Wang, Hongyue,Liu, Yanhong,et al. An Improved Procedure for the Determination of Ferrous Iron Mass Fraction in Silicate Rocks Using a Schlenk Line-Based Digestion Apparatus to Exclude Oxygen[J]. GEOSTANDARDS AND GEOANALYTICAL RESEARCH,2017,41(3):411-425. |
| APA | Xue, Dingshuai,Wang, Hongyue,Liu, Yanhong,Xie, Liewen,&Shen, Ping.(2017).An Improved Procedure for the Determination of Ferrous Iron Mass Fraction in Silicate Rocks Using a Schlenk Line-Based Digestion Apparatus to Exclude Oxygen.GEOSTANDARDS AND GEOANALYTICAL RESEARCH,41(3),411-425. |
| MLA | Xue, Dingshuai,et al."An Improved Procedure for the Determination of Ferrous Iron Mass Fraction in Silicate Rocks Using a Schlenk Line-Based Digestion Apparatus to Exclude Oxygen".GEOSTANDARDS AND GEOANALYTICAL RESEARCH 41.3(2017):411-425. |
入库方式： OAI收割
来源：地质与地球物理研究所
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