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Preparation and Characterization of a Molecularly Imprinted Microgel for Electrochemical Sensing of 2,4,6-Trichlorophenol

  1. Goretti Díaz-Díaz,
  2. M. Carmen Blanco-López,
  3. M. Jesús Lobo-Castañón,
  4. Arturo J. Miranda-Ordieres,
  5. Paulino Tuñón-Blanco*

Article first published online: 15 NOV 2010

DOI: 10.1002/elan.201000481

Issue

Electroanalysis

Electroanalysis

Special Issue: 13th International Conference on Electroanalysis, ESEAC 2010, Gijón, Spain

Volume 23, Issue 1, pages 201–208, January 2011

Additional Information

How to Cite

Díaz-Díaz, G., Blanco-López, M. C., Lobo-Castañón, M. J., Miranda-Ordieres, A. J. and Tuñón-Blanco, P. (2011), Preparation and Characterization of a Molecularly Imprinted Microgel for Electrochemical Sensing of 2,4,6-Trichlorophenol. Electroanalysis, 23: 201–208. doi: 10.1002/elan.201000481

Author Information

  1. Departamento de Química Física y Analítica, Universidad de Oviedo, Julián Clavería, 8. 33006. Oviedo, Spain fax: +34 985103125; phone: +34 985103487

*Departamento de Química Física y Analítica, Universidad de Oviedo, Julián Clavería, 8. 33006. Oviedo, Spain fax: +34 985103125; phone: +34 985103487

Publication History

  1. Issue published online: 28 DEC 2010
  2. Article first published online: 15 NOV 2010
  3. Manuscript Accepted: 30 SEP 2010
  4. Manuscript Received: 30 JUL 2010

Funded by

  • Spanish Government, Ministerio de Ciencia e Innovación. Grant Number: CTQ2008-02429/BQU
  • European Social Fund (ESF)
  • Spanish Ministerio de Educación
  • ESF
  • FPI
  • Unidad de Microscopía y Microanálisis
  • University of Oviedo

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Keywords:

  • Molecularly imprinted polymer;
  • Catalyst;
  • Microgel;
  • 2,4,6-Trichlorophenol;
  • Screen-printed electrode

Abstract

This article describes the synthesis and characterization of a catalytic 2,4,6-trichlorophenol molecularly imprinted microgel that could replace a natural chloroperoxidase to develop electrochemical sensors. This polymer exhibits an apparent mean particle size of 1–4 µm and high porosity, and mimics the dehalogenative function of the natural enzyme chloroperoxidase for p-halophenols. Two strategies were explored: a carbon paste modified with the polymer and the drop-coating of screen-printed electrodes with powder suspensions of the polymer and carbon nanotubes. With this last design, TCP concentrations above 25 µM could be detected. The sensor developed this way could be used for environmental waste screening.

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