Influence of polishing and of electrochemical pretreatment on the performance of glassy-carbon electrodes in electrochemical detection

Several stages in a metallographic polishing procedure in combination with an electrochemical pretreatment have been investigated with regard to the performance of glassy-carbon electrodes in the electrochemical detection of adrenaline. Depending on the polishing procedure applied, the electrode surface becomes more or less deactivated during its use. Extensive polishing is shown to yield a reactive surface which is very sensitive towards...