Laminated Microelectrodes: A Simple Approach to the Construction of Inexpensive Microelectrodes with a Variety of Geometries

Designs for reusable microelectrodes, which are easy to assemble and so do not require special technical skills or services for their construction, are presented. Three types of microelectrodes are fabricated by lamination of metal foil, wire, and wire grids, producing microband, microdisk, and a linear array of microdisk geometries. The electrodes themselves do not need to be polished prior to their use but are observed to be slightly recessed from the surrounding insulating surface. Good agreement is observed between experimental steadystate voltammetric results in nonaqueous solutions and the relevant analytical theory for the voltammetric current.