Royal Society of Chemistry, RSC Advances, 47(4), p. 24653-24657, 2014
DOI: 10.1039/c4ra02247e
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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.