Preparation of a New Electrochemical Sensor Based on Cadmium Oxide Nanoparticles and Application for Determination of Penicillamine

摘要

Novel cadmium oxide nanoparticles based sensor for the detection of penicillamine (PA) in aqueoussolution has been developed. Cyclic voltammetry at potential range -1.1 to 1.1V from aqueous buffersolution (pH 7) containing CdO produced a well-defined cadmium oxide nanoparticles deposited onthe surface of glassy carbon electrode. The Differential pulse voltammetry detection of penicillamineis carried out at 0.451V in buffer solution with pH 7. Cadmium oxide nanoparticles have manyadvantageous such as remarkable catalytic activity, simple preparation procedure and long-termstability of signal response during of penicillamine oxidation.