Electrocatalytic activity of salicylic acid on the platinum nanoparticles modified electrode by electrochemical deposition.
Electrocatalytic activity of salicylic acid on the platinum nanoparticles modified electrode by electrochemical deposition.
复制标题
电化学沉积水杨酸在铂纳米粒子修饰电极上的电催化活性。
DOI：
10.1016/j.colsurfb.2009.10.038
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发表时间：
2010-03
期刊：
影响因子：
--
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中科院分区：
文献类型：
--
作者：
采用电化学沉积法将纳米铂（PNP）修饰在铂盘电极上，发现水杨酸（SA）在所制备的纳米铂修饰铂盘电极（PNP/Pt）上具有良好的电催化氧化响应。在弱碱性条件下，用该修饰电极检测水杨酸，其响应电流是裸铂盘电极的9.2倍，检测线性范围为2.0×10− 5 ~ 5.0×10− 4 M。采用该电极对中药足光散中的水杨酸进行检测，结果表明PNP/Pt电极作为水杨酸传感器具有检测限低、重复性和稳定性好等优点，可以可靠地应用于中药足光散中水杨酸的检测。
Platinum nanoparticles (PNP) were deposited on the Pt disk electrode by electrochemical deposition, it was found that salicylic acid (SA) had good electrocatalytic oxidation response at the prepared Pt nanoparticles modified Pt disk electrode (PNP/Pt). Then the modified electrode was used to detect SA in weak alkali condition, it was found that the response current was 9.2 times that of bare Pt disk electrode, and the linear range of detection was 2.0×10−5to 5.0×10−4M. After that, the electrode was adopted to detect the SA in Zuguangsan, one kind of Chinese medicine, the results showed that the PNP/Pt electrode has low detection limit, high repeatability and stability as SA sensor, could be applied in the detection of SA reliably.
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