Method Study on the Separation and Enrichment of Rhenium Measured by Negative Thermal Ionization Mass Spectrometry
In Re-Os isotope chronology, the acetone extraction process is quicker and easier compared to the anion exchange method. The Re solution which was separated and purified by acetone extraction is suitable for the measurement by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS), but unsuitable for...
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| Format: | Article |
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Science Press, PR China
2013-05-01
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| Series: | Yankuang ceshi |
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| Online Access: | http://www.ykcs.ac.cn/en/article/id/4160de76-d952-4cf1-965f-61fcd7d1c94f |
| _version_ | 1811167436431425536 |
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| author | WANG Li-bing QU Wen-Jun LI Chao ZHOU Li-min DU An-dao ZU Bo |
| author_facet | WANG Li-bing QU Wen-Jun LI Chao ZHOU Li-min DU An-dao ZU Bo |
| author_sort | WANG Li-bing |
| collection | DOAJ |
| description | In Re-Os isotope chronology, the acetone extraction process is quicker and easier compared to the anion exchange method. The Re solution which was separated and purified by acetone extraction is suitable for the measurement by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS), but unsuitable for Negative Thermal Ionization Mass Spectrometry (N-TIMS) directly because of high salt contents. An improvement was made to the acetone extraction method to separate and purify Re for N-TIMS determination by increasing the alkalinity concentration from 5 mol/L to 10 mol/L. Compared with the anion exchange method, the acetone extraction process is not only easier to operate with lower blank (Re 3-7 pg), but also saves time. The signal intensity of Re was over 100 mV per 1 ng Re, which met the requirements of a high-accuracy instrument measurement completely. The national first grade standard material of JDC (GBW 04436) and the laboratory reference material of JCBY were measured to verify the improved method. The Re contents of JDC and JCBY obtained from this method were (17.17±0.50) μg/g and (38.34±0.44) ng/g, respectively, which were consistent with the certified value of JDC (17.39±0.32) μg/g and the certified value of JCBY (38.61±0.86) ng/g. The improved procedure was applied to practical samples with good long-term results. |
| first_indexed | 2024-04-10T16:10:23Z |
| format | Article |
| id | doaj.art-5f6d28a5c119458eb86be340549715f2 |
| institution | Directory Open Access Journal |
| issn | 0254-5357 |
| language | English |
| last_indexed | 2024-04-10T16:10:23Z |
| publishDate | 2013-05-01 |
| publisher | Science Press, PR China |
| record_format | Article |
| series | Yankuang ceshi |
| spelling | doaj.art-5f6d28a5c119458eb86be340549715f22023-02-10T01:43:43ZengScience Press, PR ChinaYankuang ceshi0254-53572013-05-01323402408ykcs-32-3-402Method Study on the Separation and Enrichment of Rhenium Measured by Negative Thermal Ionization Mass SpectrometryWANG Li-bing0QU Wen-Jun1LI Chao2ZHOU Li-min3DU An-dao4ZU Bo5Key Laboratory of Rhenium-Osmium Isotopic Geochemistry, Chinese Academy of Geological Sciences, National Research Center for Geoanalysis, Beijing 100037, ChinaKey Laboratory of Rhenium-Osmium Isotopic Geochemistry, Chinese Academy of Geological Sciences, National Research Center for Geoanalysis, Beijing 100037, ChinaKey Laboratory of Rhenium-Osmium Isotopic Geochemistry, Chinese Academy of Geological Sciences, National Research Center for Geoanalysis, Beijing 100037, ChinaKey Laboratory of Rhenium-Osmium Isotopic Geochemistry, Chinese Academy of Geological Sciences, National Research Center for Geoanalysis, Beijing 100037, ChinaKey Laboratory of Rhenium-Osmium Isotopic Geochemistry, Chinese Academy of Geological Sciences, National Research Center for Geoanalysis, Beijing 100037, ChinaSchool of the Earth Sciences and Resources, China University of Geoscience (Beijing), Beijing 100083, ChinaIn Re-Os isotope chronology, the acetone extraction process is quicker and easier compared to the anion exchange method. The Re solution which was separated and purified by acetone extraction is suitable for the measurement by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS), but unsuitable for Negative Thermal Ionization Mass Spectrometry (N-TIMS) directly because of high salt contents. An improvement was made to the acetone extraction method to separate and purify Re for N-TIMS determination by increasing the alkalinity concentration from 5 mol/L to 10 mol/L. Compared with the anion exchange method, the acetone extraction process is not only easier to operate with lower blank (Re 3-7 pg), but also saves time. The signal intensity of Re was over 100 mV per 1 ng Re, which met the requirements of a high-accuracy instrument measurement completely. The national first grade standard material of JDC (GBW 04436) and the laboratory reference material of JCBY were measured to verify the improved method. The Re contents of JDC and JCBY obtained from this method were (17.17±0.50) μg/g and (38.34±0.44) ng/g, respectively, which were consistent with the certified value of JDC (17.39±0.32) μg/g and the certified value of JCBY (38.61±0.86) ng/g. The improved procedure was applied to practical samples with good long-term results.http://www.ykcs.ac.cn/en/article/id/4160de76-d952-4cf1-965f-61fcd7d1c94fre-os isotopeacetone extractionion-exchangenegative thermal ionization mass spectrometry |
| spellingShingle | WANG Li-bing QU Wen-Jun LI Chao ZHOU Li-min DU An-dao ZU Bo Method Study on the Separation and Enrichment of Rhenium Measured by Negative Thermal Ionization Mass Spectrometry Yankuang ceshi re-os isotope acetone extraction ion-exchange negative thermal ionization mass spectrometry |
| title | Method Study on the Separation and Enrichment of Rhenium Measured by Negative Thermal Ionization Mass Spectrometry |
| title_full | Method Study on the Separation and Enrichment of Rhenium Measured by Negative Thermal Ionization Mass Spectrometry |
| title_fullStr | Method Study on the Separation and Enrichment of Rhenium Measured by Negative Thermal Ionization Mass Spectrometry |
| title_full_unstemmed | Method Study on the Separation and Enrichment of Rhenium Measured by Negative Thermal Ionization Mass Spectrometry |
| title_short | Method Study on the Separation and Enrichment of Rhenium Measured by Negative Thermal Ionization Mass Spectrometry |
| title_sort | method study on the separation and enrichment of rhenium measured by negative thermal ionization mass spectrometry |
| topic | re-os isotope acetone extraction ion-exchange negative thermal ionization mass spectrometry |
| url | http://www.ykcs.ac.cn/en/article/id/4160de76-d952-4cf1-965f-61fcd7d1c94f |
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