A Microwave Digestion Technique for the Analysis of Rare Earth Elements, Thorium and Uranium in Geochemical Certified Reference Materials and Soils by Inductively Coupled Plasma Mass Spectrometry
Two different digestion methods—microwave digestion (Mw) and Savillex digestion (Sx)—were used to evaluate the best quality control for analysis of the rare earth elements, Th and U in the geochemical certified reference material JSd-2, supplied by the Geological Survey of Japan (GSJ). The analysis...
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MDPI AG
2020-11-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/25/21/5178 |
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| author | Sharayu Kasar Rajamanickam Murugan Hideki Arae Tatsuo Aono Sarata Kumar Sahoo |
| author_facet | Sharayu Kasar Rajamanickam Murugan Hideki Arae Tatsuo Aono Sarata Kumar Sahoo |
| author_sort | Sharayu Kasar |
| collection | DOAJ |
| description | Two different digestion methods—microwave digestion (Mw) and Savillex digestion (Sx)—were used to evaluate the best quality control for analysis of the rare earth elements, Th and U in the geochemical certified reference material JSd-2, supplied by the Geological Survey of Japan (GSJ). The analysis of trace elements was carried out using inductively coupled plasma mass spectrometry (ICP-MS). The digestion recovery was > 90% for almost all elements by both methods. Mw-4 (four repeats of the microwave digestion) was found to be more effective and faster than Sx. In order to evaluate the efficiency of Mw-4, three other GSJ certified reference materials, JLk-1, JB-1 and JB-3, as well as five different soil samples from Belarus, Japan, Serbia and Ukraine were also analyzed. The Mw-4 method was seen to be promising for complete digestion and recovery of most of the elements. The U/Th ratio showed some heterogeneity for Ukraine and Serbia soils affected by Chernobyl nuclear power plant accident and depleted uranium contamination, respectively. This method can be successfully applied to any type of soils for elemental analyses. |
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| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T15:02:10Z |
| publishDate | 2020-11-01 |
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| series | Molecules |
| spelling | doaj.art-7494105437fc43029aa050698adabadf2023-11-20T20:03:24ZengMDPI AGMolecules1420-30492020-11-012521517810.3390/molecules25215178A Microwave Digestion Technique for the Analysis of Rare Earth Elements, Thorium and Uranium in Geochemical Certified Reference Materials and Soils by Inductively Coupled Plasma Mass SpectrometrySharayu Kasar0Rajamanickam Murugan1Hideki Arae2Tatsuo Aono3Sarata Kumar Sahoo4Environmental Radionuclides Research Group, National Institutes for Quantum and Radiological Sciences and Technology (QST), Chiba 263-8555, JapanEnvironmental Radionuclides Research Group, National Institutes for Quantum and Radiological Sciences and Technology (QST), Chiba 263-8555, JapanEnvironmental Radionuclides Research Group, National Institutes for Quantum and Radiological Sciences and Technology (QST), Chiba 263-8555, JapanEnvironmental Radionuclides Research Group, National Institutes for Quantum and Radiological Sciences and Technology (QST), Chiba 263-8555, JapanEnvironmental Radionuclides Research Group, National Institutes for Quantum and Radiological Sciences and Technology (QST), Chiba 263-8555, JapanTwo different digestion methods—microwave digestion (Mw) and Savillex digestion (Sx)—were used to evaluate the best quality control for analysis of the rare earth elements, Th and U in the geochemical certified reference material JSd-2, supplied by the Geological Survey of Japan (GSJ). The analysis of trace elements was carried out using inductively coupled plasma mass spectrometry (ICP-MS). The digestion recovery was > 90% for almost all elements by both methods. Mw-4 (four repeats of the microwave digestion) was found to be more effective and faster than Sx. In order to evaluate the efficiency of Mw-4, three other GSJ certified reference materials, JLk-1, JB-1 and JB-3, as well as five different soil samples from Belarus, Japan, Serbia and Ukraine were also analyzed. The Mw-4 method was seen to be promising for complete digestion and recovery of most of the elements. The U/Th ratio showed some heterogeneity for Ukraine and Serbia soils affected by Chernobyl nuclear power plant accident and depleted uranium contamination, respectively. This method can be successfully applied to any type of soils for elemental analyses.https://www.mdpi.com/1420-3049/25/21/5178JSd-2chemical digestionrare earth elementsThUICP-MS |
| spellingShingle | Sharayu Kasar Rajamanickam Murugan Hideki Arae Tatsuo Aono Sarata Kumar Sahoo A Microwave Digestion Technique for the Analysis of Rare Earth Elements, Thorium and Uranium in Geochemical Certified Reference Materials and Soils by Inductively Coupled Plasma Mass Spectrometry Molecules JSd-2 chemical digestion rare earth elements Th U ICP-MS |
| title | A Microwave Digestion Technique for the Analysis of Rare Earth Elements, Thorium and Uranium in Geochemical Certified Reference Materials and Soils by Inductively Coupled Plasma Mass Spectrometry |
| title_full | A Microwave Digestion Technique for the Analysis of Rare Earth Elements, Thorium and Uranium in Geochemical Certified Reference Materials and Soils by Inductively Coupled Plasma Mass Spectrometry |
| title_fullStr | A Microwave Digestion Technique for the Analysis of Rare Earth Elements, Thorium and Uranium in Geochemical Certified Reference Materials and Soils by Inductively Coupled Plasma Mass Spectrometry |
| title_full_unstemmed | A Microwave Digestion Technique for the Analysis of Rare Earth Elements, Thorium and Uranium in Geochemical Certified Reference Materials and Soils by Inductively Coupled Plasma Mass Spectrometry |
| title_short | A Microwave Digestion Technique for the Analysis of Rare Earth Elements, Thorium and Uranium in Geochemical Certified Reference Materials and Soils by Inductively Coupled Plasma Mass Spectrometry |
| title_sort | microwave digestion technique for the analysis of rare earth elements thorium and uranium in geochemical certified reference materials and soils by inductively coupled plasma mass spectrometry |
| topic | JSd-2 chemical digestion rare earth elements Th U ICP-MS |
| url | https://www.mdpi.com/1420-3049/25/21/5178 |
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