Journal
ELECTROANALYSIS
Volume 25, Issue 11, Pages 2435-2444Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.201300364
Keywords
Nanocarbon paste electrode; Graphite electrode; Mineral oil; Paraffin oil; Kinetics; Acetaminophen
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Funding
- CAPES [10080-12-0]
- National Research Foundation
- Economic Development Board (SPORE) [COY-15-EWI-RCFSA/N197-1]
- Marie Curie Intra European Fellowship within the 7th European Community Framework Programme
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The electrochemical behaviour of carbon paste electrodes prepared using nanocarbon and mineral oil was investigated and the results contrasted with different carbon and carbon pastes electrodes. The composition of carbon paste was studied by performing cyclic voltammetry performed in 0.1M KCl solution in the presence of 4.0mM Ru(NH3)(6)Cl-3, a well-characterized redox system commonly used to test the electrode behaviour. After optimisation of the paste composition, the sensors chosen were tested for the analysis and characterization of three different systems: Ru(NH3)(6)(3+/2+), FcCH(2)OH/FcCH(2)OH(+) and acetaminophen. The ability to obtain high quality voltammetry from the nanocarbon electrode was demonstrated and simulation of the voltammetry allowed the extraction of electrode kinetic parameters with high precision.
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