Abstract
A novel dye-polymer/CNT, poly(taurine)/MWNT-modified glassy carbon electrode was fabricated. This electrode is based on an electrochemically polymerized taurine layer coated on a MWNT film. The application of this electrode for voltammetric detection of acetaminophen is described. The electroactive surface area of the modified electrode was calculated to be 0.37 cm2. Acetaminophen is oxidized at 0.38 V and then reduced at 0.27 V on the modified electrode. The irreversible oxidation process is due to the conversion of acetaminophen into imidogenquinone; the reduction process is ascribed to the reverse electrode reaction. The adsorption-controlled anodic peak current is proportional to the acetaminophen concentration (from 1.0 μM to 0.1 mM) with a detection limit of 0.5 μM. The detection of acetaminophen in drugs was conducted.
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Financial support from the Science Foundation of Department of Education of Hubei Province, P. R. China (Project D200515003) and Hubei Key Lab of Novel Reactor and Green Chemical Technology are gratefully acknowledged.
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Wan, Q., Wang, X., Yu, F. et al. Poly(taurine)/MWNT-modified glassy carbon electrodes for the detection of acetaminophen. J Appl Electrochem 39, 785–790 (2009). https://doi.org/10.1007/s10800-008-9721-1
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DOI: https://doi.org/10.1007/s10800-008-9721-1