ELECTROCHEMICAL BIOSENSORS FOR PESTICIDE DETERMINATION IN FOOD SAMPLES

An overview of the different electrochemical biosensors for pesticide determination in food matrices is presented. Cholinesterase-based bios ensors, for the analysis of carbamate and organophosphorus pesticides have been the most widely used in this specific area of research. Orga nophosphorus and carbamate pesticide residues are often detected in cr op samples, so biosensors can be a god tool for the screening of food products in routine control laboratories. The matrix effect and the co mparison with chromatographic techniques for validation studies are al so discussed. Enzymatic biosensors for other classes of pesticides lik e dithiocarbamte fungiciodes and various herbicides are summarized.