Application of addition HClO4 to improve the dissolution process and sensitivity of Os for low-concentration of Os in pyrite
文献类型：期刊论文
| 作者 | Gao, Bingyu2,3; Li, Wenjun2,3; Jin, Xindi1; Zhang, Lianchang3 |
| 刊名 | MICROCHEMICAL JOURNAL
 |
| 出版日期 | 2019-11-01 |
| 卷号 | 150页码:5 |
| 关键词 | Re-Os isotope system Pyrite HClO4 H2O2 |
| ISSN号 | 0026-265X |
| DOI | 10.1016/j.microc.2019.104165 |
| 英文摘要 | The rhenium (Re) and osmium (Os) isotope systems have long been recognized as effective tools to directly date mineralization and trace the source of metals. In general, 0.4 g of pyrite was dissolved by 11 mL of inverse aqua regia in a 30-mL Carius tube. Larger volumes of acids and a larger Carius tube were required if the sample weight was over 0.4 g. Herein we present an improved dissolution process of the Carius tube digestion method by adding HClO4 to dissolve larger sample weights in smaller volumes of acid. This approach is more suitable for determining low concentrations of Os in metal sulfides. In detail, 0.4 g of pyrite was completely dissolved in a mixture of 1 mL of HClO4 and 3 mL of inverse aqua regia. Notably, addition of 1 mL of HClO4 to 8 mL of inverse aqua regia significantly increases the amount of sample from 0.4 to 0.8 g. Based on our data, while the sample weight was no > 0.8 g, addition of 1 mL of HClO4 to inverse aqua regia can not only improve the dissolving capacity significantly, but also avoid Carius tube explosion. Furthermore, the dissolving capacity of HClO4-inverse aqua regia method is much higher than that of H2O2-inverse aqua regia method, which is a typical digestion method for Re-Os dating. This method was certified by reference materials (HLP and JDC). In brief, this new method allows dissolution of larger amounts of sample while consuming less acid. Therefore, this method has more potential for determining low concentrations of Re and Os in metal sulfides. |
| WOS关键词 | RE-OS ; GOLD MINERALIZATION ; BROOKS RANGE ; OSMIUM ; SYSTEMATICS ; RHENIUM ; GEOCHRONOLOGY ; DEPOSIT ; AGE ; CONSTRAINTS |
| 资助项目 | National Natural Science General Project[41603016] ; National Natural Science General Project[41373063] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000495469400087 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95727]  |
| 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 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Gao, Bingyu |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Bingyu,Li, Wenjun,Jin, Xindi,et al. Application of addition HClO4 to improve the dissolution process and sensitivity of Os for low-concentration of Os in pyrite[J]. MICROCHEMICAL JOURNAL,2019,150:5. |
| APA | Gao, Bingyu,Li, Wenjun,Jin, Xindi,&Zhang, Lianchang.(2019).Application of addition HClO4 to improve the dissolution process and sensitivity of Os for low-concentration of Os in pyrite.MICROCHEMICAL JOURNAL,150,5. |
| MLA | Gao, Bingyu,et al."Application of addition HClO4 to improve the dissolution process and sensitivity of Os for low-concentration of Os in pyrite".MICROCHEMICAL JOURNAL 150(2019):5. |
入库方式： OAI收割
来源：地质与地球物理研究所
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