Ionic Liquid Salt Bridge in Dilute Aqueous Solutions

DOI PDF Web Site Web Site Web Site ほか1件をすべて表示 一部だけ表示 被引用文献16件 参考文献45件
  • YOSHIMATSU Takahiro
    Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University
  • KAKIUCHI Takashi
    Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University

この論文をさがす

抄録

A new type of salt bridge composed of a hydrophobic room-temperature ionic liquid, recently proposed (T. Kakiuchi and T. Yoshimatsu, Bull. Chem. Soc. Jpn., 2006, 79, 1017), has been shown to be satisfactorily usable in dilute aqueous solutions of submillimolar range. A stable phase-boundary potential has been demonstrated between an ionic liquid, 1-octyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C8mim+][C1C1N-), and an aqueous KCl solution of submillimolar level, which is lower than the solubility of [C8mim+][C1C1N-] in water, 1.6 mmol dm-3 at 25°C. The phase-boundary potential between [C8mim+][C1C1N-] and water is maintained constant over more than four orders of magnitude change in the concentration of an aqueous electrolyte solution. The ionic-liquid salt bridge is a superior alternative to salt bridges based on equitransferent electrolytes in practical applications, particularly, the potentiometry of samples of low ionic strengths, such as potentiometric pH measurements of rainwater.

収録刊行物

  • Analytical Sciences

    Analytical Sciences 23 (9), 1049-1052, 2007

    社団法人 日本分析化学会

被引用文献 (16)*注記

もっと見る

参考文献 (45)*注記

もっと見る

関連プロジェクト

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ