Examination of Tube Radial Distribution Phenomenon and Its Function Appearance

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  • TSUKAGOSHI Kazuhiko
    Department of Chemical Engineering and Materials Science, Doshisha University Tube Radial Distribution Phenomenon Research Center, Doshisha University

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  • 管径方向分配現象の解明と機能発現
  • カンケイ ホウコウ ブンパイ ゲンショウ ノ カイメイ ト キノウ ハツゲン

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Abstract

Our group has reported on a specific microfluidic behavior of solvents, i.e., the tube radial distribution of mixed solvents in a microspace. We in short call it the "tube radial distribution phenomenon" (TRDP). For example, when a ternary mixed homogeneous solution of water–hydrophilic/hydrophobic organic solvents is delivered into a microspace, such as a microchannel or a capillary tube, the solvent molecules are radially distributed in this microspace, generating inner and outer phases. The TRDP was examined through fluorescence photographs, the construction of a phase diagram, and the elution behavior of solutes in a capillary tube. The TRDP creates a kinetic liquid-liquid interface in a microspace. A capillary chromatography system where the outer phase functions as a pseudo-stationary phase under laminar-flow conditions has also been developed based on the TRDP. This is called "tube radial distribution chromatography" (TRDC). Otherwise, we have investigated the extraction, mixing procedure, and chemical reaction based on the TRDP. They are called "tube radial distribution extraction" (TRDE), "tube radial distribution mixing" (TRDM), and "tube radial distribution reaction" (TRDR), respectively. The concepts and experimental data regarding TRDP, TRDC, TRDE, TRDM, and TRDR are described in this manuscript.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 62 (5), 393-407, 2013

    The Japan Society for Analytical Chemistry

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