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A novel tyrosinase-based biosensor was developed for the determination of 2,4-dichlorophenol (2,4-DCP) by immobilizing tyrosinase on multi-walled carbon nanotubules (MWNTs) and polydiallyldimethylammonium chloride (PDDA) modified glassy carbon electrode. The biosensor showed a sensitive electrochemical response to 2,4-DCP in the presence of oxygen in solution. The effects of pH, adsorption time of...
An electrochemical sensor for trace levels of hydrogen peroxide (HP) was fabricated by the self-assembly of multi-walled carbon nanotubes, a gold-chitosan colloid, followed by electrodeposition of Prussian blue. The electrode was characterized by cyclic voltammetry, electrochemical impedance spectroscopy and other methods. The electrode shows well-defined peaks at 101 mV and 193 mV, the reduction...
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