DEVELOPMENT OF ENZYME-BASED AMPEROMETRIC SENSORS FOR THE DETERMINATION OF PHENOLIC-COMPOUNDS

The development of biosensor-based analytical techniques for the determination of phenolic compounds in real surface waters is described. The methods start with an enzyme's catalytic cycle and then the incorporation of enzyme electrodes into simple flow injection or integrated sample handling units. catalytic properties of tyrosinases, laccases, and peroxidases are exploited for the construction of sensors with narrow or broad selectivity. Some results on the determination of phenolic compounds in real water samples are presented.