Homogeneous Liquid-Liquid Extraction of Metal-1,10-Phenanthroline Chelates in a Weak Acidic Solution

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  • YAMAGUCHI Hitoshi
    Materials Analysis Station, National Institute for Materials Science
  • ITOH Shinji
    Materials Analysis Station, National Institute for Materials Science
  • IGARASHI Shukuro
    Department of Materials Science, Faculty of Engineering, Ibaraki University
  • KOBAYASHI Takeshi
    Materials Analysis Station, National Institute for Materials Science

Bibliographic Information

Other Title
  • 金属‐１，１０‐フェナントロリンキレートの弱酸性領域での均一液液抽出法
  • 金属-1,10-フェナントロリンキレートの弱酸性領域での均一液液抽出法
  • キンゾク 1 10 フェナントロリンキレート ノ ジャクサンセイ リョウイキ デ ノ キンイツ エキエキ チュウシュツホウ

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Abstract

We studied phase separation in a weak acidic solution by homogeneous liquid-liquid extraction. Using acetone as a water-soluble organic solvent, 1,10-phenanthroline as a chelate-forming agent, and Zonyl FSA as a phase-separating agent, we developed a phase-separating method for 14 kinds of elements, such as Al, Cu, and Ti, in a weak acid (around pH 2). With the addition of 1 ml of 50 v/v% Zonyl FSA, the volume of the segregating phase was 100 μl. The recovery rate of each element by this method was 95% or more, demonstrating that various types of chelate-forming agents can be used in homogeneous liquid-liquid extraction in a weak acid and that this method could be applied in a wide range of practical fields.<br>

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 54 (3), 227-230, 2005

    The Japan Society for Analytical Chemistry

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