Title of article
Study on the aqueous two-phase systems composed of surfactant, ionic liquid and water
Author/Authors
Wang، نويسنده , , Xiuhong and Wei، نويسنده , , Xilian and Liu، نويسنده , , Jie and Liu، نويسنده , , Jifeng and Sun، نويسنده , , Dezhi and Du، نويسنده , , Panpan and Ping، نويسنده , , Ali، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2013
Pages
7
From page
1
To page
7
Abstract
The phase behavior and microstructures of the aqueous two-phase systems (ATPS) composed of a cationic/an anionic surfactant (3-p-nonylphenoxy-2-hydroxypropyltrimethylammonium bromide, NPTAB/sodium dodecylbenzenesulfonate, SDBS) and an ionic liquid (1-hexyl-3-methylimidazolium tetrafluoroborate, [Hmim][BF4]) were studied by using cryogenic transmission electron microscopy (Cryo-TEM) observations, nuclear magnetic resonance (NMR) experiments and electric conductivity. The concentration effects of the surfactants and the ionic liquid on the phase separation were systematically investigated. The experimental outcomes indicated that the formation of ATPS can be attributed to the coexistence of different micelles in the upper and lower phases. The ATPS here investigated were further characterized for the first time through their application to the extractive potential for amino acids, where l-tryptophan was selected as a model biomolecule.
Keywords
partition coefficient , Cationic surfactant , Anionic surfactant , Aqueous two-phase systems , Ionic liquid
Journal title
Fluid Phase Equilibria
Serial Year
2013
Journal title
Fluid Phase Equilibria
Record number
1989475
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