Microwave Digestion and ICP-MS Determination of Major and Trace Elements in Waste Sm-Co Magnets
In this article, inductively coupled plasma mass-spectrometry (ICP-MS) and inductively coupled plasma optical-emission spectrometry (ICP-OES) were used for the development of an analytical procedure for analysis of the waste of Sm-Co magnets. Experimental parameters related to microwave digestion pr...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/8/1308 |
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| author | Natalia A. Korotkova Vasilisa B. Baranovskaya Kseniya V. Petrova |
| author_facet | Natalia A. Korotkova Vasilisa B. Baranovskaya Kseniya V. Petrova |
| author_sort | Natalia A. Korotkova |
| collection | DOAJ |
| description | In this article, inductively coupled plasma mass-spectrometry (ICP-MS) and inductively coupled plasma optical-emission spectrometry (ICP-OES) were used for the development of an analytical procedure for analysis of the waste of Sm-Co magnets. Experimental parameters related to microwave digestion processes and acid concentrations were optimized. Microwave digestion was carried out in mixtures of HF, HCl, HNO<sub>3</sub> and H<sub>2</sub>SO<sub>4</sub>. The complete dissolution of the samples occurred in the system: 10 mL H<sub>2</sub>O, 2 mL HNO<sub>3</sub>, 10 mL HCl and 1 mL H<sub>2</sub>SO<sub>4</sub>. The dependence of the matrix effect on the ICP-MS analysis of waste Sm-Co magnets was studied and optimal instrumental parameters were investigated (nebulizer gas flow, sampling depth and potential at the extractor lens). The optimal conditions were a nebulizer gas flow of 0.85–0.90 L/min, a sampling depth of 101, potential at the extractor lens of −400 V and a sample flow rate of 50 rpm. A recovery test and inter-method experiments were performed to verify the accuracy of the proposed method. |
| first_indexed | 2024-03-09T12:56:39Z |
| format | Article |
| id | doaj.art-26697864447947bc807c222911930bf4 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T12:56:39Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
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| series | Metals |
| spelling | doaj.art-26697864447947bc807c222911930bf42023-11-30T21:59:04ZengMDPI AGMetals2075-47012022-08-01128130810.3390/met12081308Microwave Digestion and ICP-MS Determination of Major and Trace Elements in Waste Sm-Co MagnetsNatalia A. Korotkova0Vasilisa B. Baranovskaya1Kseniya V. Petrova2Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences (IGIC RAS), 119991 Moscow, RussiaKurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences (IGIC RAS), 119991 Moscow, RussiaKurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences (IGIC RAS), 119991 Moscow, RussiaIn this article, inductively coupled plasma mass-spectrometry (ICP-MS) and inductively coupled plasma optical-emission spectrometry (ICP-OES) were used for the development of an analytical procedure for analysis of the waste of Sm-Co magnets. Experimental parameters related to microwave digestion processes and acid concentrations were optimized. Microwave digestion was carried out in mixtures of HF, HCl, HNO<sub>3</sub> and H<sub>2</sub>SO<sub>4</sub>. The complete dissolution of the samples occurred in the system: 10 mL H<sub>2</sub>O, 2 mL HNO<sub>3</sub>, 10 mL HCl and 1 mL H<sub>2</sub>SO<sub>4</sub>. The dependence of the matrix effect on the ICP-MS analysis of waste Sm-Co magnets was studied and optimal instrumental parameters were investigated (nebulizer gas flow, sampling depth and potential at the extractor lens). The optimal conditions were a nebulizer gas flow of 0.85–0.90 L/min, a sampling depth of 101, potential at the extractor lens of −400 V and a sample flow rate of 50 rpm. A recovery test and inter-method experiments were performed to verify the accuracy of the proposed method.https://www.mdpi.com/2075-4701/12/8/1308rare earth elementsSm-Co magnetsICP-MSICP-OESmicrowave digestion |
| spellingShingle | Natalia A. Korotkova Vasilisa B. Baranovskaya Kseniya V. Petrova Microwave Digestion and ICP-MS Determination of Major and Trace Elements in Waste Sm-Co Magnets Metals rare earth elements Sm-Co magnets ICP-MS ICP-OES microwave digestion |
| title | Microwave Digestion and ICP-MS Determination of Major and Trace Elements in Waste Sm-Co Magnets |
| title_full | Microwave Digestion and ICP-MS Determination of Major and Trace Elements in Waste Sm-Co Magnets |
| title_fullStr | Microwave Digestion and ICP-MS Determination of Major and Trace Elements in Waste Sm-Co Magnets |
| title_full_unstemmed | Microwave Digestion and ICP-MS Determination of Major and Trace Elements in Waste Sm-Co Magnets |
| title_short | Microwave Digestion and ICP-MS Determination of Major and Trace Elements in Waste Sm-Co Magnets |
| title_sort | microwave digestion and icp ms determination of major and trace elements in waste sm co magnets |
| topic | rare earth elements Sm-Co magnets ICP-MS ICP-OES microwave digestion |
| url | https://www.mdpi.com/2075-4701/12/8/1308 |
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