The modification of the water \ 1,2-dichloroethane interface with a zeolite
membrane is reported: application of a potential difference across the mod
ified interface allows the selective transfer of ionic species on the basis
of the applied interfacial potential difference and the dimensions of the
transferring ion with respect to those of the zeolite pores. (C) 2000 Elsev
ier Science S.A. All rights reserved.