RT info:eu-repo/semantics/article
T1 Molecularly imprinted polypyrrole based electrochemical sensor for selective determination of ethanethiol
A1 Alonso Lomillo, Mª Asunción
A1 Domínguez Renedo, Olga
K1 Ethanethiol
K1 Molecularly imprinted polymer
K1 Polypyrrole
K1 Gold nanoparticles
K1 Electrochemical sensor
K1 Wine
K1 Química
K1 Chemistry
K1 Química física
K1 Chemistry, Physical and theoretical
K1 Salud
K1 Health
K1 Alimentos
K1 Food
AB This work describes a molecularly imprinted (MIP) sensor, based on the electropolymerization of pyrrole on a glassy carbon electrode (GCE), for the determination of ethanethiol. Ethanethiol was used as a template molecule for the formation of cavities in the imprinted polymer. The effect of molar ratios template molecules/functional monomers and time needed to remove the template were optimized. The developed MIP/GCE sensor presented a linear range from 6.1 to 32.4 mg L−1 with capability detection and reproducibility values of 7.2 mg L−1 and 10.4%, respectively. The sensitivity of the developed sensor was enhanced by the incorporation of gold nanoparticles (AuNPs). The AuNPs/MIP/GCE showed a capability of detection and reproducibility values of 0.4 mg L−1 and 4.1%, respectively (calibration range from 0.3 to 3.1 mg L−1). The sensor was successfully applied to the determination of ethanethiol in spiked wine samples with recoveries ranging from 99% to 107%.
PB Elsevier
SN 0039-9140
YR 2023
FD 2023
LK http://hdl.handle.net/10259/10024
UL http://hdl.handle.net/10259/10024
LA eng
NO Authors would like to acknowledge funding obtained by Junta de Castilla y León (BU018G19) and Agencia Estatal de Investigación (PID2020-117095RB-I00).
DS Repositorio Institucional de la Universidad de Burgos
RD 31-ene-2025