Zeolite-membrane modulation of simple and facilitated ion transfer

The silicalite-modified water/organic interface represents a novel system, which is of potential utility for electroanalytical studies. As a means of investigating the analytical potential of this interface the facilitated tr ansfer of various alkali and alkaline earth metal ions have been investigat ed using voltammetric methods. Additionally, the size selective transfer of tetraalkylammonium ions across this modified interface has been studied an d a possible adsorption process that may be a step in the overall transfer has been identified.