RT info:eu-repo/semantics/article
T1 Gold nanoparticle-based amperometric sensors integrating a gel polymer membrane electrolyte for the headspace determination of ethanethiol in wines
A1 Molinero Abad, Begoña
A1 Trachioti, Maria
A1 Prodromidis, Mamas I.
A1 Domínguez Renedo, Olga
A1 Alonso Lomillo, Mª Asunción
K1 Ethanethiol
K1 Screen-printed carbon electrodes
K1 Gold nanoparticles
K1 Spark discharge
K1 Gas sensor
K1 Room temperature ionic liquids
K1 Wine analysis
K1 Electroquímica
K1 Electrochemistry
K1 Análisis electroquímico
K1 Electrochemical analysis
AB The evaluation of different gold nanoparticles (AuNPs) modified screen-printed carbon electrodes (SPCEs) for the determination of ethanethiol in wine is presented in this work. Two procedures, electrochemical and spark discharge modification, have been tested for depositing AuNPs onto the working electrode surface. A gel polymer membrane, based on the mixture of 1-n‑butyl‑3-methylimidazolium hexafluorophosphate (BMIM-PF6) and poly(vinylidene fluoride) (PVDF) in dimethyl sulfoxide, has been incorporated as a supporting electrolyte for the amperometric determination of the analyte in the gas phase. The developed sensors demonstrated high selectivity and sensitivity, having a detection capability of 80 μg/L (α = β = 0.05). They also exhibited a high degree of precision, with reproducibility values ranging from 0.3 to 7.6%. The different AuNP/SPCEs integrating a gel polymer membrane electrolyte have been successfully applied to the headspace amperometric determination of ethanethiol in various wine samples.
PB Elsevier
SN 0013-4686
YR 2025
FD 2025-03
LK http://hdl.handle.net/10259/10043
UL http://hdl.handle.net/10259/10043
LA eng
NO This research was supported by PID2020-117095RBI00/AEI/10.13039/501100011033 and PID2023-149522OB-100 funded by MCIU/AEI/10.13039/501100011033/FEDER,UE.
DS Repositorio Institucional de la Universidad de Burgos
RD 30-ene-2025