Approaches to increasing the sensitivity of the determination of phenolic compounds using chitosan-based solid-phase optical biosensors
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It was shown that the sensitivity of the determination of phenolic compounds using chitosan-based optical biosensors could be increased by varying the sorption conditions of products of enzymatic oxidation of phenolic compounds. Sorption isotherms of oxidation products of phenolic compounds by a chitosan film were studied according to Langmuir and Freundlich models. Quantitative characteristics of the sortpion process, such as maximum sorption capacity, the Langmuir isotherm constants, and the Gibbs free energy were determined.
Keywordssolid-phase optical biosensor chitosan sorption phenolic compounds
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