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タイトル: Ionic Liquid Synergistic Cation-Exchange System for the Selective Extraction of Lanthanum(III) Using 2-Thenoyltrifluoroacetone and 18-Crown-6
著者: Hirayama, Naoki
Okamura, Hiroyuki
Kidani, Keiji
Imura, Hisanori link image link image
平山, 直紀
井村, 久則
発行日: 2008年 6月10日
出版社(者): 日本分析化学会 = The Japan Society for Analytical Chemistry
雑誌名: Analytical sciences
ISSN: 0910-6340
巻: 24
号: 6
開始ページ: 697
抄録: A novel synergistic extraction system was investigated for the possible selective separation of light lanthanoids using an ionic liquid, 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide, as an extraction solvent and 2-thenoyltrifluoroacetone and 18-crown-6 as extractants. Trivalent lanthanum was efficiently extracted as a cationic ternary complex by the cation-exchange process, whereas europium and lutetium showed relatively low extractability without forming respective ternary complexes. This result is thought to originate in a size-fitting effect of 18-crown-6 to lanthanum and the unique nature of the ionic liquid as a chelate extraction solvent.
DOI: 10.2116/analsci.24.697
URI: http://hdl.handle.net/2297/28458
関連URI: http://wwwsoc.nii.ac.jp/jsac/
資料種別: Journal Article
権利関係: Copyright (c) 2008 by The Japan Society for Analytical Chemistry
版表示: publisher

このアイテムを引用あるいはリンクする場合は次の識別子を使用してください。 http://hdl.handle.net/2297/28458



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