RT journal article
T1 Bulk Modification of Sonogel–Carbon with Polyaniline: A Suitable Redox Mediator for Chlorophenols Detection
A1 Sierra Padilla, Alfonso
A1 Cubillana Aguilera, Laura
A1 Palacios Santander, José María
A1 García Guzmán, Juan José
A1 López-Iglesias, David
A1 Calatayud‑Macías, Paloma
A2 Química Analítica
A2 Química Orgánica
K1 Sonogel–Carbon
K1 polyaniline
K1 bulk modifier
K1 4-chloro-3-methylphenol
K1 spiked water
AB settingsOrder Article ReprintsOpen AccessArticleBulk Modification of Sonogel–Carbon with Polyaniline: A Suitable Redox Mediator for Chlorophenols Detectionby Paloma Calatayud-Macías,David López-IglesiasORCID,Alfonso Sierra-PadillaORCID,Laura Cubillana-Aguilera *ORCID,José María Palacios-Santander *ORCID andJuan José García-GuzmánORCIDDepartment of Analytical Chemistry, Institute of Research on Electron Microscopy and Materials (IMEYMAT), Faculty of Sciences, Campus de Excelencia Internacional del Mar (CEIMAR), University of Cadiz, Campus Universitario de Puerto Real, Polígono del Río San Pedro S/N, 11510 Puerto Real, Spain*Authors to whom correspondence should be addressed.Chemosensors 2023, 11(1), 63; https://doi.org/10.3390/chemosensors11010063Received: 7 December 2022 / Revised: 10 January 2023 / Accepted: 12 January 2023 / Published: 13 January 2023(This article belongs to the Special Issue Recent Developments in Electrochemical Sensing)Download Browse Figures Versions NotesAbstractIn this work, the development and characterization of a new ceramic material modified with polyaniline powder obtained by a high-power ultrasound sol-gel route is presented. A preliminary screening of the conducting polymer electroactivity was performed by means of cyclic voltammetry in free analyte solution. Remarkable figures of merit for 4-chloro-3-methylphenol (PCMC) determination, selected as the model organic analyte, was obtained with the developed material: the sensitivity and the limit of detection were 2.40 μA/μM·cm2 and 0.69 μM, respectively. The developed device was also successfully applied in the electrochemical determination of PCMC in water samples collected from different sources, obtaining recovery values ranging from 92% to 105%. The electrochemical performance of the device for the detection of other chlorophenols of interest was better in comparison with the bare electrode in all cases, due to the presence of the bulk modifier in the material. Therefore, the electrode material can be promoted for electrochemical assays of different chlorophenols in buffer and real water media for environmental monitoring.
PB MDPI
SN 2227-9040
YR 2023
FD 2023-01-13
LK http://hdl.handle.net/10498/29158
UL http://hdl.handle.net/10498/29158
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 07-nov-2026