Differential Pulse Voltammetry Method for the Determination of Glucose on Multi-Nanostructured Active Electrode Modified by Platinum Nanoparticles

Abstract:

Electrocatalytic oxidation of multi-nanostructured active electrode modified by platinum nanoparticles on glucose was examined. Based on 0.5mol/L KOH solution, we see a sensitive and good-shaped oxidation peak current near -0.77V (VS, SCE) by using differential pulse voltammetry method to scan in the range of -0.9~0.4V.The peak is regarded as the quantitative peak. There is a good linear relationship between glucose concentration and the peak current in the range of 1.0×10-2~1.0×10-5 mol/L. The linear correlation coefficient is 0.99864.The detection limit is 1.0×10-6mol/L. If added 0.06 m mol/L ascorbic acid or 0.3m mol/L uric acid (simulating human blood components), the determination of glucose is not interfered with. Results of the determination of glucose concentration in the blood are satisfactory.

• Periodical: Advanced Materials Research (Volumes 554-556)
• Pages: 440-444
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.554-556.440
• Online since: July 2012
• Authors: He Zhen Wu, Aie Cao, Di Lou Xu, Dao Bao Chu
• Keywords: Differential Pulse Voltammetry, Electrocatalytic Oxidation, Glucose, Multi-Nanostructured Active Electrode

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