Abstract: An electrode for use in electrochemical reactions such as electrochemical stripping analysis comprises a plurality of generally parallelly oriented and laterally spatially displaced electrically conductive fibers which are separated and held in a core by electrically insulating bonding material which substantially completely fills the lateral spaces between the fibers. The fibers, preferably carbon fibers, have a crystallographic structure of a plurality of maximum electrical conducting planes extending generally parallel to the fiber. The bonding material is substantially electrically insulating and may be a polyester or epoxy resin.