• 文献标题:   Graphene Ink Film Based Electrochemical Detector for Paracetamol Analysis
  • 文献类型:   Article
  • 作  者:   FU L, XIE KF, ZHENG YH, ZHANG LX, SU WT
  • 作者关键词:   electrode surface modification, graphene ink, paracetamol, electrochemical oxidation
  • 出版物名称:   ELECTRONICS
  • ISSN:   2079-9292
  • 通讯作者地址:   Hangzhou Dianzi Univ
  • 被引频次:   13
  • DOI:   10.3390/electronics7020015
  • 出版年:   2018

▎ 摘  要

Graphene ink is a commercialized product in the graphene industry with promising potential application in electronic device design. However, the limitation of the graphene ink is its low electronic performance due to the ink preparation protocol. In this work, we proposed a simple post-treatment of graphene ink coating via electrochemical oxidation. The electronic conductivity of the graphene ink coating was enhanced as expected after the treatment. The proposed electrochemical oxidation treatment also exposes the defects of graphene and triggered an electrocatalytic reaction during the sensing of paracetamol (PA). The overpotential of redox is much lower than conventional PA redox potential, which is favorable for avoiding the interference species. Under optimum conditions, the graphene ink-based electrochemical sensor could linearly detect PA from 10 to 500 micro molar (M), with a limit of detection of 2.7 mu M.