The working electrode is where the chemistry happens. Its material, geometry, polishability and surface state set the limits of every voltammetric, amperometric and electroanalytical measurement. ElectroSeek aggregates more than forty working electrodes: glassy carbon (GC) disk electrodes in 2 mm, 3 mm and 5 mm diameters (plus reticulated vitreous carbon), gold disk electrodes, platinum disk electrodes, silver working electrodes, and the full base-metal range, copper, aluminium, zinc, nickel, titanium, tungsten, lead, iron, cadmium and palladium working electrodes, in 2 mm and 3 mm disk diameters, PEEK-bodied and high-pressure designs. Compare material, disk diameter, body and connector across suppliers.