Journal
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
Volume 406, Issue 27, Pages 6953-6956Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-014-7871-z
Keywords
Polypyrrole; Reduced graphene oxide; Hg2+ ions; Porous electrode
Funding
- National Basic Research Program of China (973 Program) [2012CB933402, 2013CB93300]
- Natural Science Foundation of China [51161120361]
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A polypyrrole (PPy)-functionalized three-dimensional (3D) porous electrode of electrochemically reduced graphene oxide (ErGO) has been prepared by electrochemical deposition. This PPy-modified 3D-ErGO electrode was used for the electrochemical detection of Hg2+ ions, and it exhibited high sensitivity and selectivity. Furthermore, the limit of detection (LOD) was measured to be as low as 0.03 nM (30 ppt), and this value is much lower than the guideline value of 2 ppb for drinking water given by the World Health Organization.
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