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P. V. Rodionov, I. A. Veselova, M. E. Pavlova, E. A. Alieva, T. N. Shekhovtsova
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. The isotherms of sorption of the phenolic
compounds oxidation products into chitosan were described by Langmuir and
Freundlich types of equations. The following sorption characteristics were
determined: maximum sorption capacity, Langmuir isotherm constant, Gibbs free
energy and others.
Key words: solid-phase optical biosensor,
chitosan, sorption, phenolic compounds.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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