A new method of detection of 2,4-dichlorophenoxyacetic acid by means of immobilized monoclonal antibodies and an amperometric cholinesterase biosensor is proposed. A combination of monoclonal antibodies to 2,4-dichlorophenoxyacetic acid with an enzyme electrode provides high selectivity of measurements and allows trace amounts of this pesticide to be detected within a concentration range of 1 x 10(-1) to 5 x 10(-7) M with a sensitivity threshold of 5 x 10(-12) M.
        
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Mediantseva EP, Vertlib MG, Budnikov GK, Tyshlek MP (1998) [A novel use of cholinesterase amperometric biosensor for selective determination of 2,4-dichlorophenoxyacetic acid] Prikl Biokhim Mikrobiol34: 220-4