FLUOROMETRIC AND COULOMETRIC ANALYSES OF ELECTRON-TRANSFER ACROSS MICRODROPLET WATER INTERFACE

Electron transfer between ferrocene (FeCp) and Fe(III) across the droplet/water interface was studied by an optically transparent thin-layer electrode method. A time dependence of the FeCp concentration in the droplets caused by the interfacial electron transfer was discussed on the basis of coulometric analysis of Fe(II) or Fe(III) in the water phase and fluorometric analysis of FeCp in the droplets.