Accession Number:

ADA252424

Title:

Interfacial Ion Transport Between Immiscible Liquids (Preprint)

Descriptive Note:

Technical rept.

Corporate Author:

NORTHERN ILLINOIS UNIV DE KALB DEPT OF CHEMISTRY

Personal Author(s):

Report Date:

1992-06-24

Pagination or Media Count:

52.0

Abstract:

The interface between two immiscible liquids is used as a characteristic boundary for study of charge equilibrium, adsorption and transport. Interfacial potential differences across the liquidliquid boundary are explained theoretically and documented in experimental studies with fluorescent, potential sensitive dyes. The results show that presence of an inert salt or a physiological electrolyte is essential for the function of the dyes. Impedance measurements are used for studies of bovine serum albumin adsorption on the interface. Ways of determining liquid liquid capacitance influenced by BSA presence are shown. The potential of zero charge of the interface was obtained for zero to 200 ppm of BSA. The impedance behavior is also discussed as a function of pH. A recent new approach, using microinterface for interfacial ion transport, is outlined. Ion-transport, immiscible solutions, electrochemistry, fluorescent indicators, membrane potential, adsorption, impedance.

Subject Categories:

  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE