%0 Journal Article
%A Jin, Yan
%A Mao, Minmin
%A Ge, Yuqing
%A Huang, Shanluo
%A Ju, Jiaqi
%A Jin, Qinghui
%A Offenhäusser, Andreas
%A Zhao, Jianlong
%T Fabrication of surface renewable carbon microelectrode arrays and their application in heavy metal ion sensing
%J Analytical methods
%V 11
%N 9
%@ 1759-9679
%C Cambridge
%I RSC Publ.
%M FZJ-2019-02449
%P 1284 - 1288
%D 2019
%X In this paper, surface renewable carbon microelectrode arrays (MEAs) were developed using microfabrication technology and were successfully applied in heavy metal ion sensing. The as-prepared carbon microelectrode was fabricated with a cylindrical shape 50 μm in diameter and 300 μm in height. Cyclic voltammetry (CV) analysis with scan rates ranging from 10 mV s−1 to 100 mV s−1 was utilized to characterize the MEAs, and it was found that the typical properties (flat redox peaks) of MEAs appeared at lower scan rates (<30 mV s−1). Heavy metal ions, including Cd2+, Pb2+ and Cu2+ were chosen to demonstrate the performance of the developed MEAs for electrochemical sensor applications, with the detection limit calculated to be 1 μg L−1. Renewability and repeatability experiments were also carried out to demonstrate the good characteristics of the MEAs. This work developed a novel microfabrication technique for low cost surface renewable MEAs that can be used as an electrochemical platform for a wide range of sensor applications.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000459906000016
%R 10.1039/C9AY00043G
%U https://juser.fz-juelich.de/record/862093