Capillary zone electrophoretic studies of ion association between inorganic anions and tetraalkylammonium ions in aqueous-dioxane media
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Date
2005-04
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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.
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Full text can be accessed at
http://www.sciencedirect.com/science/article/pii/S0021967305002499
Keywords
Aqueous–dioxane media, Williams–Vigh method, Ion association, Capillary zone electrophoresis
Citation
Mbuna, J., Takayanagi, T., Oshima, M. and Motomizu, S., 2005. Capillary zone electrophoretic studies of ion association between inorganic anions and tetraalkylammonium ions in aqueous–dioxane media. Journal of Chromatography A, 1069(2), pp.261-270.