Open‐circuit Electrochemical Polymerization for the Sensitive Detection of Phenols |
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Authors: | Azeem Rana Abdel‐Nasser Kawde |
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Affiliation: | Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia |
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Abstract: | We report on a novel electrochemical method for electro‐polymerizing phenols under open‐circuit conditions. The method developed here is simple, sensitive, rapid, and overcomes the well‐documented surface fouling of carbon electrodes by phenols. A pre‐charged disposable graphite pencil electrode (pCGPE) was found to be useful for both phenol sampling and sensing. The pCGPE was prepared by charging the surface of a graphite pencil electrode by applying a cyclic voltammetry electrochemical treatment in a NaOH solution. Phenol sampling was accomplished by immersing the pCGPE into a phenol solution. This method permitted phenol detection with a detection limit of 4.17 nM (0.39 ppt). |
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Keywords: | Phenol Graphite Pencil Electrode Cyclic Voltammetry Open‐Circuit Electropolymerization |
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