Electrochemical simulation is used to validate the geometry of commercially manufactured interdigitated array electrodes intended for use in generator-collector experiments, consisting of two interlocked arrays of band electrodes. A working surface is generated showing peak current as a function of scan rate and the inter electrode distance when cyclic voltammetry is performed at a single array of band electrodes. This working curve is then used to establish accurate electrode widths and inter-electrode distances of an interdigitated band array using a fully supported aqueous solution of ruthenium hexamine trichloride as a test system by running voltammetry at one of the two arrays at a time. Both arrays are then used at the same time to perform cyclic voltammetry to validate the established electrode geometries of 9.9 and 10.7 mu m for the electrode widths in the two arrays, and 10.5 mu m for the distance between adjacent electrodes. Cyclic voltammetry in generator-collector mode is then carried out, and these parameters used to successfully simulate the experimental data. The level of precision determined is essential for the quantitative interpretation of generator-collector measurements using interdigitated electrodes. (C) 2015 Elsevier B.V. All rights reserved.