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Voltammetric Determination of Metamitron with an Electrogenerated Molecularly Imprinted Polymer Microsensor
Article first published online: 30 JAN 2007
DOI: 10.1002/elan.200603731
Copyright © 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Issue
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Electroanalysis
Special Issue: 11th International ESEAC Conference, 2006
Volume 19, Issue 2-3, pages 356–363, January 2007
Additional Information
How to Cite
Gómez-Caballero, A., Unceta, N., Goicolea, M. and Barrio, R. (2007), Voltammetric Determination of Metamitron with an Electrogenerated Molecularly Imprinted Polymer Microsensor. Electroanalysis, 19: 356–363. doi: 10.1002/elan.200603731
Publication History
- Issue published online: 30 JAN 2007
- Article first published online: 30 JAN 2007
- Manuscript Accepted: 21 AUG 2006
- Manuscript Received: 27 JUN 2006
- Abstract
- References
- Cited By
Keywords:
- Electrogenerated MIPs;
- Microsensors;
- Triazines;
- Voltammetry
Abstract
A molecularly imprinted polymer microsensor was synthesized onto the surface of a carbon fiber microelectrode (CFME) by cyclic voltammetry between −0.1 V and +1.35 V at a scan rate of 50 mV s−1. The monomers aniline and o-phenylenediamine (o-PD) were electrocopolymerized in the presence of the template (metamitron) in an aqueous medium of 0.1 M H2SO4. In order to obtain a sensor with the highest number of imprinted sites as possible, different experiments related to the polymerization process were carried out. The response of the synthesized microsensor was linear to the metamitron in the range between 10−6 and 10−4 with sensitivity of 0.143 nA μM−1 with good repeatability (<9% RSD). Employing these experimental conditions, the microsensor was able to distinguish the metamitron from other closely related triazines like metribuzin or isomethiozin.