Published in
Royal Society of Chemistry, RSC Advances, 47(4), p. 24653-24657, 2014
DOI: 10.1039/c4ra02247e
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Graphene oxide-based electrochemical sensor: A platform for ultrasensitive detection of heavy metal ions
Journal article published in 2014 by
Xuezhong Gong,
Yunlong Bi,
Yihua Zhao,
Guozhen Liu,
Wey Yang Teoh
This paper is made freely available by the publisher.
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Abstract
Facile functionalization of graphene oxide sheets on gold surface results in complexation-enhanced electrochemical detection of heavy metal ions, shown here for Pb2+, Cu2+ and Hg2+, with improved detection limits by two orders of magnitude relative to the control electrode.