Adsorptive component in oxidation and renewal processes at different types of electrodes for antibiotic-macrolide azithromycin dihydrate has been studied. Adsorption parameters for azithromycin oxidation processes at glass-carbon electrode and for renewal processes at mercury-film electrode were calculated.

The volt ampere measurement method is proposed to research the adsorption process of surface active organic matters on solid and liquid electrodes. The boundary value problem for case when adsorbed compound is electrochemical active is solved. The methods of evaluation of various parameters of adsorption process are considered.