RT info:eu-repo/semantics/article
T1 Molecularly imprinted polypyrrole based electrochemical sensor for selective determination of 4-ethylphenol
A1 Domínguez Renedo, Olga
A1 Navarro Cuñado, A. Marta
A1 Arnáiz Lozano, Víctor
A1 Alonso Lomillo, Mª Asunción
K1 4-ethylphenol
K1 Molecularly imprinted polymer
K1 Polypyrrole
K1 Electrochemical sensor
K1 Wine
K1 Química analítica
K1 Chemistry, Analytic
AB This work describes the development of an electrochemical sensor based on a molecularly imprinted polymer (MIP) for sensitive and selective determination of 4-ethylphenol in wine. The sensor has been built by means of the electrosynthesis of the MIP on a glassy carbon electrode surface using cyclic voltammetry. The electropolymerization has been performed in the presence of 4-ethylphenol and pyrrole as template molecule and functional monomer, respectively. The influence of the molar ratios of template molecules to functional pyrrole monomers and the time needed to remove the template have been optimized taking into account the differential pulse voltammetric response of 4-ethylphenol. Under the optimal experimental conditions the developed MIP/GCE sensor shows good capability of detection (0.2 μM, α = β = 0.05) and reproducibility (3.0%) in the concentration range from 0.2 to 34.8 μM. The influence of possible interfering species in the analytical response has been studied and the sensor has successfully been applied to the determination of 4-ethylphenol in different wine samples.
PB Elsevier
SN 0039-9140
YR 2020
FD 2020-01
LK http://hdl.handle.net/10259/5330
UL http://hdl.handle.net/10259/5330
LA eng
NO Junta de Castilla y León (BU018G19)
DS Repositorio Institucional de la Universidad de Burgos
RD 26-abr-2024