Analytical Sciences

Abstract − Analytical Sciences, 19(4), 603 (2003).

Distribution of the Amplitude of the Self-Oscillation of the Electrical Potential Difference Observed in an Organic Phase of a Water-Oil-Water Liquid Membrane System
Toshifumi YOSHIDOME,  Jun TAKAHAMA, Masaru MITSUSHIO, and Morihide HIGO
Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering, Kagoshima University,1-21-40 Korimoto, Kagoshima 890-0065, Japan
The electrical potential differences were measured at various points in an organic phase of a water-oil-water liquid membrane system in which self-oscillations of an electrical potential difference occurred across a three-phases-liquid membrane by using an H-shaped cell. The electrical potential difference oscillated in the direction through the two aqueous phases, but not in its vertical direction. The amplitude of the self-oscillation greatly changed around the place where the horizontal tube was connected to the vertical tube, which had no surfactant.