Electrochemical Determination of Caffeine in Tea Using a Polydopamine-Gold Nanocomposite
文献类型: 外文期刊
第一作者: Zou, Dongsheng
作者: Zou, Dongsheng;Fu, Haiping;Zhang, Guolin;Xiao, Runlin;Liu, Jun;Li, Shaojing
作者机构:
关键词: Caffeine;Electrochemical sensor;Graphene;Polydopamine;Children asthmatic attack
期刊名称:INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE ( 影响因子:1.765; 五年影响因子:1.685 )
ISSN: 1452-3981
年卷期: 2017 年 12 卷 12 期
页码:
收录情况: SCI
摘要: A polydopamine-gold nanocomposite (PDA/AuNPs)-based caffeine sensor with high sensitivity was fabricated. The electrochemical performance of the caffeine sensor was characterized in various electrolyte solutions, including sodium perchlorate, phosphate buffer saline, and choline chloride containing oxalic acid. The influence of interference agents, normally present in caffeine-containing samples, on caffeine detection was also studied. The PDA/AuNPs/GCE-based sensor showed excellent performance in the determination of caffeine in tea samples.
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