Laser Reactivation of Gold and Glassy Carbon Electrodes

In the present work, we have studied an in-situ electrochemical and laser reactivation for pretreatment of gold and glassy carbon electrodes surface used as a working electrode in electrochemical determination of cefazolin antibiotic. The activation processes were studied using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques. The activated electrodes were used for electro oxidation of cefazolin antibiotic. Also, the N-2 laser and dye laser were applied for activation of polluted glassy carbon (GC) and gold electrodes. The results show that cathodic electrochemical activation had more efficient that anodic activation, variables of pulse duration, power density, energy and wavelength have been investigated.