Ege University, Science Faculty, Department of Chemistry, 35100 Bornova, Izmir, Turkey.
Talanta. 2010 Jan 15;80(3):1461-6. doi: 10.1016/j.talanta.2009.09.054.
Cu nanoparticles have been electrochemically incorporated polypyrrole film that was used for modification of the glassy carbon electrode surface. The performance of the electrode has been characterized by cyclic voltammetry and atomic force microscopy. The electrode has shown high electrocatalytic activity towards the oxidation of dopamine (DA) and uric acid (UA) simultaneously in a phosphate buffer solution (pH 7.00). The electrocatalytic oxidation currents of UA and DA were found linearly related to concentration over the range 1x10(-9) to 1x10(-5)M for UA and 1x10(-9) to 1x10(-7)M for DA using DPVs method. The detection limits were determined as 8x10(-10)M (s/n=3) for UA and 8.5x10(-10)M (s/n=3) for DA at a signal-to-noise ratio of 3.
铜纳米粒子已被电化学纳入聚吡咯膜中，用于修饰玻碳电极表面。通过循环伏安法和原子力显微镜对电极的性能进行了表征。该电极在磷酸盐缓冲溶液（pH 7.00）中对多巴胺（DA）和尿酸（UA）的同时氧化表现出高电催化活性。使用 DPVs 方法，发现 UA 和 DA 的电催化氧化电流与浓度在 1x10(-9) 至 1x10(-5)M 范围内对于 UA 和 1x10(-9) 至 1x10(-7)M 范围内对于 DA 呈线性相关。在信噪比为 3 时，UA 的检测限确定为 8x10(-10)M（s/n=3），DA 的检测限确定为 8.5x10(-10)M（s/n=3）。
