Diverse Secondary Interactions between Ions Exchanged into the Resin Phase and Their Analytical Applications

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  • YUCHI Akio
    Graduate School of Engineering, Nagoya Institute of Technology

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Description

The research activities by the author’s group to elucidate the chemical states of ions within the ion exchange resin phase are summarized. The resin with the higher exchange capacity has the smaller space available for ion exchange, and the higher cross linking degree interferes more with swelling of the resin. As a result, diverse secondary interactions between exchanged ions are observed on the resins of high exchange capacities and high cross linking degrees: the van der Waals contact results in incomplete exchange or enhanced dehydration of ions, hydrogen bond formation between acidic anions, and coadsorption of anions with metal ions. Contribution of the simple ion exchange mechanism to the reactions of iminodiactate-type chelating resins with metal ions in the acidic media is quantitatively discussed. The resulting complexes were successfully applied to preconcentration and separation of anions.

Journal

  • Analytical Sciences

    Analytical Sciences 30 (1), 51-57, 2014

    The Japan Society for Analytical Chemistry

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