Cobalt Monoxide Nanoparticles Modified Glassy Carbon Electrodes as a Sensor for Determination of Nitrite

Abstract:

A new method for the determination of nitrite was established based on cobalt monoxide (CoO) nanoparticles modified glassy carbon electrode (CS-CoO/GCE). In 0.15mol/L pH 4.0 HAc-NaAc, the CS-CoO/GCE showed a remarkable catalytic and enhancement effect on oxidation of the nitrite. A linear dynamic range of 8.0×10-7 to 6.0×10-3 mol/L (R=0.997) with a detection limit of 1.0×10-7 mol/L was obtained. The electrochemical mechanism was been obtained. This method has been used to determine the content of nitrite in real samples.

• Periodical: Advanced Materials Research (Volumes 1120-1121)
• Pages: 291-298
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1120-1121.291
• Online since: July 2015
• Authors: Guang Jun Huang*, Jin Lei Zhang, Dan Dan Zhao
• Keywords: Cobalt Monoxide Nanoparticles, Determination, Modified Electrode, Nitrite

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