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037 _ _ |a FZJ-2019-02449
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100 1 _ |a Jin, Yan
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245 _ _ |a Fabrication of surface renewable carbon microelectrode arrays and their application in heavy metal ion sensing
260 _ _ |a Cambridge
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520 _ _ |a 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.
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700 1 _ |a Mao, Minmin
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700 1 _ |a Ge, Yuqing
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700 1 _ |a Huang, Shanluo
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700 1 _ |a Ju, Jiaqi
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700 1 _ |a Jin, Qinghui
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700 1 _ |a Offenhäusser, Andreas
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|e Corresponding author
700 1 _ |a Zhao, Jianlong
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773 _ _ |a 10.1039/C9AY00043G
|g Vol. 11, no. 9, p. 1284 - 1288
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|t Analytical methods
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