Capillary zone electrophoretic studies of ion association between inorganic anions and tetraalkylammonium ions in aqueous-dioxane media

• Mbuna, Julius

• Takayanagi, Toshio

• Oshima, Mitsuko

• Motomizu, Shoji

Abstract

Ion association between inorganic anions and symmetrical tetraalkylammonium ions, R4N+ (R = Me, Et, Pr, n-Bu, n-Am, and 2-methyl butyl {isoamyl = iAm}) was investigated using ordinary silica capillary by capillary zone electrophoresis. An improved version of the Williams-Vigh method was used for the first time to measure the mobilities of the inorganic anions. Plots of log K-ass against log dielectric constant in various media, revealed a smaller change in K-ass compared to dielectric constant. These plots suggest that the Bjerrum's equation is inadequate in accounting for the associations of ions in a CZE setup.

Journal

• Journal of Chromatography A

  Journal of Chromatography A 1069 (2), 2005-05-02

Keywords

• aqueous-dioxane media
• Williams-Vigh method
• ion association
• capillary zone electrophoresis

Details

• CRID: 1050565162803345920
• NII Article ID: 120002310097
• Web Site: https://ousar.lib.okayama-u.ac.jp/33028
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles