Аннотация:Electrosurface properties of NiO and Fe2O3 oxides have been investigated in water solutions of asparagine depending on its concentration, рН of solutions and time of adsorption. It has been found that asparagine is specifically adsorbed on the surface of Fe2O3 and NiO. It has been demonstrated that the adsorption of anionic forms asparagine at Fe2O3 and cationic forms at NiO predominates.