The hydrodynamic regime is ensured with a rotating electrode laid by a rotating power unit. The working electrode in the electrochemical cell is typically made either with a single disk or with a rotating ring-disk electrode. The rotating ring-disk electrode was developed by Frumkin and Nekrasov in 1959. The theoretical part was definitely achieved in 1971 [1]. The applications are numerous in the fields of electrochemical analysis, especially in reaction mechanism study. The rotating electrode is often used for the detection of short life intermediate species. VMP3多通道電化學(xué)工作站-16通道