RT info:eu-repo/semantics/article
T1 Simultaneous quantification of 4-ethylphenol and ethanethiol in wines by headspace amperometric measurements
A1 Portugal Gómez, Paula
A1 Domínguez Renedo, Olga
A1 Alonso Lomillo, Mª Asunción
K1 4-Ethylphenol
K1 Ethanethiol
K1 Wine
K1 Amperometry
K1 Dual screen-printed carbon electrodes
K1 Gas sensor
K1 Chemistry, Analytic
K1 Chemistry, Physical and theoretical
K1 Química analítica
K1 Química física
AB Simultaneous analysis of 4-ethylphenol and ethanethiol has been carried out since they often coexist in wine samples producing significant organoleptic defects. Dual working screen-printed electrodes have been used for this aim. An activated fullerene C60 modified screen-printed carbon electrode (AC60/SPCE1) was used for the determination of 4-ethylphenol, while a cobalt (II) phthalocyanine modified SPCE (CoPh/SPCE2) was employed for ethanethiol detection. Headspace amperometric measurements were performed applying different potentials to the electrode system, which were coated by a commercial polyamide membrane immersed in supporting electrolyte, for the simultaneous and selective detection of both species in a single run. The constructed sensing dual system presented an exceptional detection performance with a capacity of detection of 2.7 mg/L and 0.2 mg/L for 4-ethyphenol and ethanethiol, respectively. The developed method was successfully applied for the simultaneous detection of both compounds in wine samples where it demonstrated a high degree of trueness and suitable efficiency.
PB Elsevier
SN 0026-265X
YR 2024
FD 2024-02
LK http://hdl.handle.net/10259/9287
UL http://hdl.handle.net/10259/9287
LA eng
NO Authors would like to acknowledge funding from Agencia Estatal de Investigación/Ministerio de Ciencia e Innovación (PID2020-117095RB-I00/AEI/10.13039/501100011033).
DS Repositorio Institucional de la Universidad de Burgos
RD 30-jun-2024