期刊
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
卷 11, 期 10, 页码 8730-8737出版社
ESG
DOI: 10.20964/2016.10.63
关键词
Conducting polymers; metals; electrocatalysis; electrochemical sensors; metabolite; Uric acid
资金
- Ministry of Science and Technology, Taiwan
We demonstrated a simple and low-cost composite composed of polyaniline and iron composite (PANI-Fe) for the determination uric acid (UA). The successful composite formation was confirmed through scanning electron microscopy, electrochemical impedance spectroscopy and electrochemical methods. The PANI-Fe composite was used to modify the surface of glassy carbon electrode (GCE) and the resulting modified electrode (PANI-Fe/GC) displayed good electrocatalytic activity to the oxidation of UA. The kinetics of the electrocatalysis and effect of scan rate were investigated. The amperometric sensor was developed based on PANI-Fe film modified electrode which delivered quick and sensitive responses to UA. The linear range is 0.05-3860 mu M, detection limit is 21.5 nM, and sensitivity is 0.2981 mu A mu M-1 cm(-2.) The electrode is highly selective for UA detection. Besides, the electrode has good repeatability and reproducibility. The real-time applicability is verified in human urine samples which displayed recoveries in acceptable range.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据