Comparison of the analytical potential of individual sensors and a multisensor system of the “electronic tongue” type for the example of determination of the perchlorate ion

Analytical results obtained in determining the perchlorate ion in individual and mixed solutions by direct potentiometry with separate chemical sensors and with an “electronic tongue” multisensor system were compared. Various anion-exchange compounds (quaternary ammonium salts and metalloporphyrins) and neutral complexation agents (trifluoroacetylbenzoic acid derivatives) were chosen as membrane-active components for sensors.