DISPOSABLE SCREEN-PRINTED ELECTRODES FOR MONITORING HYDRAZINES

Disposable amperometric sensors for hydrazines have been fabricated by a judicious tailoring of the surface of screen-printed electrodes. St rong electrocatalytic action towards the oxidation of hydrazines is ac hieved by incorporating cobalt phthalocyanine within the carbon inks o r by covering the printed surface with a mixed valent ruthenium cyanid e coating. The electrocatalytic behavior, sensor optimization and anal ytical performance are reported. The new sensor strips should facilita te on-site environmental and industrial monitoring of hydrazine compou nds.