Nanocarbon Paste Electrodes |
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| Authors: | Denise Lowinsohn Patrick Gan Kristina Tschulik John S Foord Richard G Compton |
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| Institution: | 1. Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1?3QZ, UK fax: +44?(0)?1865?275410;2. tel: +44?(0)?1865?275957;3. Department of Chemistry, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora, 36036‐330, Juiz de Fora, MG, Brazil;4. Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1?3TA, UK |
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| Abstract: | 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 0.1 M KCl solution in the presence of 4.0 mM Ru(NH3)6Cl3, 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)63+/2+, FcCH2OH/FcCH2OH+ 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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| Keywords: | Nanocarbon paste electrode Graphite electrode Mineral oil Paraffin oil Kinetics Acetaminophen |
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