Electrochemical OP sensor

An electrochemical OP sensor by the nonenzymatic route was reported based on chemical modification of the surface of a gold electrode with ferrocene derivative (Fc). For this purpose, the gold electrode was modified with dithioFc derivative to form an aminoFc-monolayer-modified electrode (Khan et al, 2007). The principle of operation of the aminoFc-modified electrode for OP sensing is that chloro-or cyano-substitued OP compounds covalently bind to aminoFc moieties, by which the redox potential of the surface-confined Fc can be altered. In fact, ca. 110 and 60 mV shifts in the redox potential were observed, suggesting a possible use of the sensors for detecting OPs from the potential shifts. 

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See also in sourсe #XX -- [ ]

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