4.6 Article

Graphene oxide-based electrochemical sensor: a platform for ultrasensitive detection of heavy metal ions

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RSC ADVANCES
卷 4, 期 47, 页码 24653-24657

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ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra02247e

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  1. Hong Kong UGC through the General Research Fund [CityU 104812]
  2. City University of Hong Kong through Startup Grant [7200252]

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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.

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