Arzamastsev Sergei Vladimirovich RussiaSaratov The Saratov State Technical University of Gagarin Yu. A., 77, Politekhnicheskaya St., Saratov, 410054доцентдоктор технических наукbort740@mail.ru0000-0001-7752-6703 Author's articles Elemental composition of the surface layers formed on titanium at the cathodic treatment in chitosan-containing aqueous-dimethyl sulfoxide solutions of phosphate-molybdate electrolyte