title: Capillary zone electrophoretic studies of ion association between inorganic anions and tetraalkylammonium ions in aqueous-dioxane media.
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 Kass against log dielectric constant in various media, revealed a smaller change in Kass 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.
authors.affiliation: Department of Chemistry, Faculty of Science, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan.
authors.forename: Julius
authors.initials: J
authors.lastname: Mbuna
authors.forename: Toshio
authors.initials: T
authors.lastname: Takayanagi
authors.forename: Mitsuko
authors.initials: M
authors.lastname: Oshima
authors.forename: Shoji
authors.initials: S
authors.lastname: Motomizu
mesh_terms: D000838:Anions / Q000737:chemistry*; D019075:Electrophoresis, Capillary / Q000379:methods*; D008433:Mathematics; D000644:Quaternary Ammonium Compounds / Q000737:chemistry*
chemical_list: D000838:Anions; D000644:Quaternary Ammonium Compounds; C009405:tetrabutylammonium