Determination of Rare-Earth Elements in Rare-Earth Magnets by Polarized Zeeman Flame Atomic Absorption Spectrometry
Rare-earth elements are essential materials for manufacturing high-performance products. Wasted home appliances are called "urban mines" ; there are many parts that contain rare metals, such as rare-earth elements. For effective recycling, it is necessary to measure the rare-earth elements...
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| Veröffentlicht in: | BUNSEKI KAGAKU 2011, Vol.60(11), pp.873-876 |
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| container_title | BUNSEKI KAGAKU |
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| creator | YAMAMOTO, Kazuko MIURA, Kazuyo YONETANI, Akira SAKAMOTO, Hideyuki SHIRASAKI, Toshihiro |
| description | Rare-earth elements are essential materials for manufacturing high-performance products. Wasted home appliances are called "urban mines" ; there are many parts that contain rare metals, such as rare-earth elements. For effective recycling, it is necessary to measure the rare-earth elements in urban mines. The measurement conditions of the rare-earth elements with polarized Zeeman atomic absorption spectrometry were optimized. In the presence of ethanol and potassium nitrate, sensitivities of rare-earth elements were improved, and no interference of coexisting iron. Rare-earth magnets were chosen as an example of urban mines. In rare-earth magnets, Nd, Dy, Pr, Gd and Sm were measured by polarized Zeeman atomic absorption spectrometry. Spike recoveries were obtained from 90 to 110%. Rare-earth elements in rare-earth magnets could be measured satisfactorily. |
| doi_str_mv | 10.2116/bunsekikagaku.60.873 |
| format | Article |
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Wasted home appliances are called "urban mines" ; there are many parts that contain rare metals, such as rare-earth elements. For effective recycling, it is necessary to measure the rare-earth elements in urban mines. The measurement conditions of the rare-earth elements with polarized Zeeman atomic absorption spectrometry were optimized. In the presence of ethanol and potassium nitrate, sensitivities of rare-earth elements were improved, and no interference of coexisting iron. Rare-earth magnets were chosen as an example of urban mines. In rare-earth magnets, Nd, Dy, Pr, Gd and Sm were measured by polarized Zeeman atomic absorption spectrometry. Spike recoveries were obtained from 90 to 110%. 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Wasted home appliances are called "urban mines" ; there are many parts that contain rare metals, such as rare-earth elements. For effective recycling, it is necessary to measure the rare-earth elements in urban mines. The measurement conditions of the rare-earth elements with polarized Zeeman atomic absorption spectrometry were optimized. In the presence of ethanol and potassium nitrate, sensitivities of rare-earth elements were improved, and no interference of coexisting iron. Rare-earth magnets were chosen as an example of urban mines. In rare-earth magnets, Nd, Dy, Pr, Gd and Sm were measured by polarized Zeeman atomic absorption spectrometry. Spike recoveries were obtained from 90 to 110%. Rare-earth elements in rare-earth magnets could be measured satisfactorily.</description><subject>Atomic absorption analysis</subject><subject>Dysprosium</subject><subject>Ethyl alcohol</subject><subject>Iron</subject><subject>Magnets</subject><subject>Mines</subject><subject>polarized Zeeman flame atomic absorption spectrometry</subject><subject>Potassium nitrates</subject><subject>Rare earth metals</subject><subject>rare-earth element</subject><subject>rare-earth magnet</subject><subject>the urban mines</subject><issn>0525-1931</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFkT1vFDEQhrcAiSjkH1BYoqHZw157bW95ChdABIH4aGissW_24tyufdje4vj1OFwU8VHQjKXR87zS-G2aZ4yuOsbkS7uEjHu_hx3sl5WkK634o-aM9l3fsoGzJ81Fzt5S2umuo504a_IrLJhmH6D4GEgcySdI2G4glRuymXDGUDLx4ff1e9gFrFt7JB_jBMn_wC35hjhDIFcTzEjWJc7ekbXNMR1-BX8-oCspzljS8WnzeIQp48X9e958vdp8uXzTXn94_fZyfd06rofS9q4fHYzALMpx3Gpr9aA5t0A72zspreR6q4AyxgX0WzVQxUYJOHCnBiU0P29enHIPKX5fMBcz--xwmiBgXLJhSlEuOiXF_1HKqNZ00Hfo87_Q27ikUA8xTIgKMcF5pcSJcinmnHA0h-RnSMcaZe66Mn90ZSQ1tauqvTtpt7nADh-k-u_eTfivxNj9rPYD5W4gGQz8J1qDqbE</recordid><startdate>20110101</startdate><enddate>20110101</enddate><creator>YAMAMOTO, Kazuko</creator><creator>MIURA, Kazuyo</creator><creator>YONETANI, Akira</creator><creator>SAKAMOTO, Hideyuki</creator><creator>SHIRASAKI, Toshihiro</creator><general>The Japan Society for Analytical Chemistry</general><general>Japan Science and Technology Agency</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20110101</creationdate><title>Determination of Rare-Earth Elements in Rare-Earth Magnets by Polarized Zeeman Flame Atomic Absorption Spectrometry</title><author>YAMAMOTO, Kazuko ; MIURA, Kazuyo ; YONETANI, Akira ; SAKAMOTO, Hideyuki ; SHIRASAKI, Toshihiro</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c389t-5c5fcafa1be6ffd8bb89833ba02b5c66b638d7a01134a5d79071f6ae93c797483</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Atomic absorption analysis</topic><topic>Dysprosium</topic><topic>Ethyl alcohol</topic><topic>Iron</topic><topic>Magnets</topic><topic>Mines</topic><topic>polarized Zeeman flame atomic absorption spectrometry</topic><topic>Potassium nitrates</topic><topic>Rare earth metals</topic><topic>rare-earth element</topic><topic>rare-earth magnet</topic><topic>the urban mines</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>YAMAMOTO, Kazuko</creatorcontrib><creatorcontrib>MIURA, Kazuyo</creatorcontrib><creatorcontrib>YONETANI, Akira</creatorcontrib><creatorcontrib>SAKAMOTO, Hideyuki</creatorcontrib><creatorcontrib>SHIRASAKI, Toshihiro</creatorcontrib><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>BUNSEKI KAGAKU</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>YAMAMOTO, Kazuko</au><au>MIURA, Kazuyo</au><au>YONETANI, Akira</au><au>SAKAMOTO, Hideyuki</au><au>SHIRASAKI, Toshihiro</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Determination of Rare-Earth Elements in Rare-Earth Magnets by Polarized Zeeman Flame Atomic Absorption Spectrometry</atitle><jtitle>BUNSEKI KAGAKU</jtitle><addtitle>BUNSEKI KAGAKU</addtitle><date>2011-01-01</date><risdate>2011</risdate><volume>60</volume><issue>11</issue><spage>873</spage><epage>876</epage><pages>873-876</pages><issn>0525-1931</issn><abstract>Rare-earth elements are essential materials for manufacturing high-performance products. 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| source | J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese; EZB-FREE-00999 freely available EZB journals; Free Full-Text Journals in Chemistry |
| subjects | Atomic absorption analysis Dysprosium Ethyl alcohol Iron Magnets Mines polarized Zeeman flame atomic absorption spectrometry Potassium nitrates Rare earth metals rare-earth element rare-earth magnet the urban mines |
| title | Determination of Rare-Earth Elements in Rare-Earth Magnets by Polarized Zeeman Flame Atomic Absorption Spectrometry |
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