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Separation of Gold(III) as Its Ion-pair Complex with 18-Crown-6 from Hydrochloric Acid Media by Means of Solvent Extraction.
http://hdl.handle.net/2297/29272
http://hdl.handle.net/2297/29272e4cd83ce-3a1e-4528-8181-beb090a9752f
名前 / ファイル | ライセンス | アクション |
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SC-PR-HONJO-T-725.pdf (223.0 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | Separation of Gold(III) as Its Ion-pair Complex with 18-Crown-6 from Hydrochloric Acid Media by Means of Solvent Extraction. | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Camagong, Cristina T.
× Camagong, Cristina T.× Honjo, Takaharu |
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書誌情報 |
Analytical Sciences 巻 17, 号 SUPPLEMENT, p. i725-i728, 発行日 2001-01-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0910-6340 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10500785 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.14891/analscisp.17icas.0.i725.0 | |||||
出版者 | ||||||
出版者 | Japan Society for Analytical Chemistry = 日本分析化学会 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A new solvent extraction technique for the separation of gold(III) at trace amounts from hydrochloric acid media was developed based on the formation of an ion-association complex of tetrachloro gold anion, AuCl4 - with 18-crown-6 (18C6) oxonium cation in 1,2-dichloroethane. The effect of various factors (crown ether, acid concentration, solvent, shaking time, stripping reagent etc.) on the extraction and separation of gold(III) was investigated. Quantitative extraction was achieved using 0.05 mol dm-3 18C6 in 1,2-dichloroethane at 4 mol dm-3 HCl within 5 min. Back-extraction was carried out by 5-min shaking with 0.1 mol dm-3 Na2S2O3 in 0.2 mol dm-3 NH3, followed by FAAS determination. Interference studies revealed excellent tolerance of the method to foreign ions. The method’s high selectivity was demonstrated by a spike recovery of >96% for gold(III) and by the negligible extraction of silver(I). Using first-class silver reagents, the quantitative recovery of traces of gold(III) was achieved up to a 20-fold preconcentration factor. | |||||
権利 | ||||||
権利情報 | Copyright (c) 2001 by The Japan Society for Analytical Chemistry | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://www.jsac.or.jp/ |