... Approaches to increase the sensitivity of the determination of phenolic compounds using the solid-phase optical biosensors based on chitosan . Abstract It has been shown that varying the conditions of sorption of the products of phenolic compounds oxidation allows increasing thesensitivity of phenols determination using the chitosan-based opticalbiosensors. ... Moscow University Chemistry Bulletin . 2013, Vol. ... 3, P. 154 . ... Moscow State University, 2002 . ...