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The Implications of HClO(4)for Dissolving Large Masses of Low Level Os in Metal Sulfides and Factors that Influence Re-Os Dating

文献类型：期刊论文

作者Gao, Bingyu1,2,3; Li, Wenjun1,2,3; Zhang, Lianchang1,2,3; Gao, Jun1,2,3
刊名APPLIED SCIENCES-BASEL
出版日期2020-09-01
卷号10期号:18页码:9
关键词Re-Os isotope low concentration Os in metal sulfide perchloric acid equilibrium of isotope exchange acid oxidation
DOI10.3390/app10186218
英文摘要In general, no more than 1 g of metal sulfide can be completely digested in 20 mL of inverse aqua regia using the Carius tube technique. In this study, the sample weight increased after adding HClO(4)to inverse aqua regia while the volume of acid concurrently decreased significantly. Three grams of metal sulfide were digested in 12 mL of acid (3 mL of HClO(4)and 9 mL of inverse aqua regia) via the HClO4-inverse aqua regia method. The results using molybdenite reference materials JDC and HLP mixed with 3 g of pyrite were consistent with certified values. Compared to the traditional method, the HClO4-inverse aqua regia method could dissolve a larger sample mass (3 g) with a smaller volume of acids (12 mL). We simultaneously found that the oxidation of digestion acids greatly affected the Os signal but had no influence on the equilibrium of isotope exchange between(185)Re and(190)Os spikes in Re and Os samples. Remarkably, the heating temperature was the most significant factor influencing the equilibrium of isotope exchange, and the Os in a sample was not equilibrated with the spike until the heating temperature reached 190 degrees C.
WOS关键词DEPOSIT ; OSMIUM ; RHENIUM ; AGE ; GEOCHRONOLOGY ; MOLYBDENITE ; SYSTEMATICS ; CHALCOPYRITE ; METEORITES ; SEPARATION
资助项目National Natural Science General Project[41603016] ; National Key R&D Program of China[2016YFC0600106]
WOS研究方向Chemistry ; Engineering ; Materials Science ; Physics
语种英语
WOS记录号WOS:000580366800001
出版者MDPI
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 Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/98331]  
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Gao, Bingyu
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, 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,Zhang, Lianchang,et al. The Implications of HClO(4)for Dissolving Large Masses of Low Level Os in Metal Sulfides and Factors that Influence Re-Os Dating[J]. APPLIED SCIENCES-BASEL,2020,10(18):9.
APA Gao, Bingyu,Li, Wenjun,Zhang, Lianchang,&Gao, Jun.(2020).The Implications of HClO(4)for Dissolving Large Masses of Low Level Os in Metal Sulfides and Factors that Influence Re-Os Dating.APPLIED SCIENCES-BASEL,10(18),9.
MLA Gao, Bingyu,et al."The Implications of HClO(4)for Dissolving Large Masses of Low Level Os in Metal Sulfides and Factors that Influence Re-Os Dating".APPLIED SCIENCES-BASEL 10.18(2020):9.

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来源：地质与地球物理研究所

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