State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, PR China.
Talanta. 2010 Jun 15;81(4-5):1877-83. doi: 10.1016/j.talanta.2010.03.041. Epub 2010 Mar 30.
The inner synergistic effect of bifunctional ionic liquid extractant (Bif-ILE) for solvent extraction is reported for the first time using [tricaprylmethylammonium][di-2-ethylhexylphosphinate] ([A336][P204]) as n extractant for Eu(III), which can be attributed to better stability and hydrophobicity of the complex formed by [A336][P204] with Eu(III). Some other Bif-ILEs are also found to have the similar inner synergistic effect. Distribution coefficient, stripping property and extraction mechanism of the novel extraction protocol are discussed in this report. The study contributes towards acquiring a new understanding of synergistic extraction and task specific ionic liquid (TSIL), furthermore, providing a positive influence on their potential application in analytical chemistry.
首次报道了双功能离子液体萃取剂（Bif-ILE）对内协同萃取效应，使用[三辛基甲基铵][二-2-乙基己基膦酸酯]（[A336][P204]）作为 Eu(III) 的萃取剂，这可归因于 Eu(III) 与 [A336][P204] 形成的配合物具有更好的稳定性和疏水性。还发现其他一些 Bif-ILE 也具有类似的内协同效应。本文讨论了这种新型萃取方案的分配系数、反萃性能和萃取机理。该研究有助于深入了解协同萃取和任务特定离子液体（TSIL），并对它们在分析化学中的潜在应用产生积极影响。
