Preparation and characterization of molecularly imprinted electropolymerized carbon electrodes |
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Authors: | Weetall Howard H Rogers Kim R |
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Institution: | U.S. Environmental Protection Agency, National Exposure Research Laboratory, 944 E. Harmon Avenue, Las Vegas, NV 89119, USA |
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Abstract: | Molecularly imprinted polymers (MIPs) selective for fluorescein, rhodamine or 2,4-dichlorophenoxyacetic acid (2,4-D) were electropolymerized onto graphite electrodes using an aqueous solution equimolar in resorsinol/ortho-phenylenediamine and in the presence of the template molecule. For the dyes, the MIP-coated electrodes showed higher affinity for their template molecule than for a non-template dye. The 2,4-D-MIP-coated electrode showed a concentration dependent response for 2,4-D as compared to the polymer-coated electrode prepared in the absence of template molecule. |
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Keywords: | 2 4-Dichlorophenoxyacetic acid 2 4-D Electropolymerization Fluorescein Rhodamine Electrochemical detection |
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