The influence of laser radiation resulted in gradual desorption of organic substances from electrode surface. The desorption rating was determined by analytical signals suppression in stripping voltammetry. The desorption kinetics was studied with analytical signals restoration. As the result of laser radiation effect the current recovery of lead anodic peak suppressed by the adsorption of butyl alcohol and arylsulfonate ions was observed. The investigations made can be used in stripping voltammetry analysis to cancel the interference of the adsorbed organic substances.