Anion Selectivities of Dibutyltin Dihalides as Neutral Carriers for Ion-Selective Electrodes.

  • MORIUCHI-KAWAKAMI Takayo
    Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology
  • AOTO Hiroshi
    Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology
  • TAKEDA Naotake
    Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology
  • FUJIMORI Keiichi
    Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology
  • SHIBUTANI Yasuhiko
    Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology

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Abstract

Di-n-butyltin dihalides (Bu2SnY2, Y=Cl, I, OMe) behaved as neutral carriers for anion-selective electrodes. A variety of selectivity patterns have been obtained by using Bu2SnY2 which differ in the electronegative substituents Y on the Sn atom. However, all electrodes containing Bu2SnY2 provided the highest degree of selectivity for the SCN- ion. The interaction of Bu2SnY2 with the SCN- ion was studied in the organic solution by means of 13C NMR spectroscopy. In the case of the addition of NaSCN, a significant increase of the value of 1J(119Sn-13Cα) was observed in the 2.0 M CDCl3 solution of Bu2SnCl2.

Journal

  • Analytical Sciences

    Analytical Sciences 16 (3), 303-306, 2000

    The Japan Society for Analytical Chemistry

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