title: Tube Radial Distribution Flow Separation in a Microchannel Using an Ionic Liquid Aqueous Two-Phase System Based on Phase Separation Multi-Phase Flow.
abstract: Ionic liquid aqueous two-phase systems were delivered into a capillary tube to achieve tube radial distribution flow (TRDF) or annular flow in a microspace. The phase diagram, viscosity of the phases, and TRDF image of the 1-butyl-3-methylimidazolium chloride and NaOH system were examined. The TRDF was formed with inner ionic liquid-rich and outer ionic liquid-poor phases in the capillary tube. The phase configuration was explained using the viscous dissipation principle. We also examined the distribution of rhodamine B in a three-branched microchannel on a microchip with ionic liquid aqueous two-phase systems for the first time.
authors.affiliation: Department of Chemical Engineering and Materials Science, Faculty of Science and Engineering, Doshisha University.
authors.forename: Kosuke
authors.initials: K
authors.lastname: Nagatani
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Shihata
authors.forename: Takahiro
authors.initials: T
authors.lastname: Matsushita
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Tsukagoshi