Preparation of coated plastic or glass rod epoxy-based voltammetric electrodes using a multi-layer coating and vapour hardening technique

Abstract

A method is recommended for producing graphite-loaded epoxy-based voltammetric electrodes by coating plastic or glass rods. A multi-layer coating technique is used, each coating being hardened by absorbed hydrofluoric acid vapour. Electrodes of sufficiently low electrical resistance are produced by rubbing graphite into several of the lower coatings immediately after they are hardened. Unlike coated-wire electrodes complete coverage of the surface being coated is not essential.