Sorption Preconcentration and Analytical Determination of Cu, Zr and Hf in Waste Samarium–Cobalt Magnet Samples
We developed a method of sorption determination via the atomic emission of Cu, Zr and Hf metals in the waste of samarium–cobalt magnets. This method was based on the preconcentration of impurities using S- and N-containing heterochain sorbents, with further determination of the analytes via inductiv...
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MDPI AG
2022-08-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/16/5275 |
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| author | Alexandra Alexandrovna Arkhipenko Kseniya Vadimovna Petrova Vasilisa Borisovna Baranovskaya |
| author_facet | Alexandra Alexandrovna Arkhipenko Kseniya Vadimovna Petrova Vasilisa Borisovna Baranovskaya |
| author_sort | Alexandra Alexandrovna Arkhipenko |
| collection | DOAJ |
| description | We developed a method of sorption determination via the atomic emission of Cu, Zr and Hf metals in the waste of samarium–cobalt magnets. This method was based on the preconcentration of impurities using S- and N-containing heterochain sorbents, with further determination of the analytes via inductively coupled plasma atomic emission spectrometry (ICP-OES). Different sorbents such as PED (polyethelendiamine), TDA (polythiodimethanamine), PhED (<i>N</i>-phenylpolyethediamine) and PTE (polythioether) were tested for Ti, Cu, Zr, Nb and Hf extraction. The PTE sorbent ensured the maximum extraction of the analytes (recovery 60% for Ti, 80% for Nb, 95–100% for Cu, Zr and Hf) and thus was selected for further research. Additionally, various acidities of chloride solution (0.01–1 M HCl) were investigated for metal sorption. Under the optimised sorption conditions, trace impurities of Cu, Zr and Hf were determined using ICP-OES with a relative standard deviation of less than 5%. The obtained results were confirmed by the added–found method and cross-method experiments. The detection limits (DLs) were 1.5, 2, 0.15, 2 and 0.75 µg/L for Ti, Cu, Zr, Nb and Hf, respectively. The proposed method can be successfully used for the determination of various microelements in other waste REE-magnetic materials. |
| first_indexed | 2024-03-09T09:52:26Z |
| format | Article |
| id | doaj.art-f27cbab941ef4a7fbee36b68a770907f |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T09:52:26Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-f27cbab941ef4a7fbee36b68a770907f2023-12-02T00:05:01ZengMDPI AGMolecules1420-30492022-08-012716527510.3390/molecules27165275Sorption Preconcentration and Analytical Determination of Cu, Zr and Hf in Waste Samarium–Cobalt Magnet SamplesAlexandra Alexandrovna Arkhipenko0Kseniya Vadimovna Petrova1Vasilisa Borisovna Baranovskaya2Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskij Prospect, 31, Moscow 119991, RussiaKurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskij Prospect, 31, Moscow 119991, RussiaKurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskij Prospect, 31, Moscow 119991, RussiaWe developed a method of sorption determination via the atomic emission of Cu, Zr and Hf metals in the waste of samarium–cobalt magnets. This method was based on the preconcentration of impurities using S- and N-containing heterochain sorbents, with further determination of the analytes via inductively coupled plasma atomic emission spectrometry (ICP-OES). Different sorbents such as PED (polyethelendiamine), TDA (polythiodimethanamine), PhED (<i>N</i>-phenylpolyethediamine) and PTE (polythioether) were tested for Ti, Cu, Zr, Nb and Hf extraction. The PTE sorbent ensured the maximum extraction of the analytes (recovery 60% for Ti, 80% for Nb, 95–100% for Cu, Zr and Hf) and thus was selected for further research. Additionally, various acidities of chloride solution (0.01–1 M HCl) were investigated for metal sorption. Under the optimised sorption conditions, trace impurities of Cu, Zr and Hf were determined using ICP-OES with a relative standard deviation of less than 5%. The obtained results were confirmed by the added–found method and cross-method experiments. The detection limits (DLs) were 1.5, 2, 0.15, 2 and 0.75 µg/L for Ti, Cu, Zr, Nb and Hf, respectively. The proposed method can be successfully used for the determination of various microelements in other waste REE-magnetic materials.https://www.mdpi.com/1420-3049/27/16/5275sorptionrecyclingICP-OESS- and N-containing sorbentpreconcentrationwaste Sm-Co magnets |
| spellingShingle | Alexandra Alexandrovna Arkhipenko Kseniya Vadimovna Petrova Vasilisa Borisovna Baranovskaya Sorption Preconcentration and Analytical Determination of Cu, Zr and Hf in Waste Samarium–Cobalt Magnet Samples Molecules sorption recycling ICP-OES S- and N-containing sorbent preconcentration waste Sm-Co magnets |
| title | Sorption Preconcentration and Analytical Determination of Cu, Zr and Hf in Waste Samarium–Cobalt Magnet Samples |
| title_full | Sorption Preconcentration and Analytical Determination of Cu, Zr and Hf in Waste Samarium–Cobalt Magnet Samples |
| title_fullStr | Sorption Preconcentration and Analytical Determination of Cu, Zr and Hf in Waste Samarium–Cobalt Magnet Samples |
| title_full_unstemmed | Sorption Preconcentration and Analytical Determination of Cu, Zr and Hf in Waste Samarium–Cobalt Magnet Samples |
| title_short | Sorption Preconcentration and Analytical Determination of Cu, Zr and Hf in Waste Samarium–Cobalt Magnet Samples |
| title_sort | sorption preconcentration and analytical determination of cu zr and hf in waste samarium cobalt magnet samples |
| topic | sorption recycling ICP-OES S- and N-containing sorbent preconcentration waste Sm-Co magnets |
| url | https://www.mdpi.com/1420-3049/27/16/5275 |
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