T. Yoshidome et al., DETECTION OF ZINC(II) ION BY USING SELF-OSCILLATION OF THE ELECTRICALPOTENTIAL ACROSS THE WATER-OIL-WATER LIQUID MEMBRANE, Chemistry Letters, (8), 1998, pp. 855-856
Oscillation of an electrical potential across a water-oil-water liquid
membrane was measured in the presence of metal ion in one of the aque
ous phases and a ligand in the organic phase, which likely forms a com
plex with Zn2+. By use of the formation of the complex around the inte
rface, Zn2+ was detected through the measurement of the oscillation mo
de.