Potentiometric biosensors based on butyrylcholinesterase are developed by co-reticulation of the enzyme with glutaraldehyde on an electropolymerized polyethyleneimine film at the electrode surface. The BuChE-electrode was tested as biochemical sensor for detection of an organophosphorus pesticide, trichlorfon in liquid, the detection being based on the enzyme inhibition. The enzyme electrode showed a detection limit for trichlorfon below 10(-7) M.
        
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Reybier K, Zairi S, Jaffrezic-Renault N, Fahys B (2002) The use of polyethyleneimine for fabrication of potentiometric cholinesterase biosensors Talanta56: 1015-20
Reybier K, Zairi S, Jaffrezic-Renault N, Fahys B (2002) Talanta56: 1015-20