Ascorbate amperometric determination using conducting copolymers from aniline and N-(3-propane sulfonic acid)aniline

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The sequential electrochemical polymerization of aniline and N-(3-propane sulfonic acid)aniline (PSA) is proposed to construct a sensor able to detect ascorbate at physiological conditions. Compared to poly(aniline) modified electrode, a device with improved conducting and electrochemical properties...

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Autores principales: Heras, J.Y., Giacobone, A.F.F., Battaglini, F.
Formato: JOUR
Materias:
Amperometric detection
Ascorbate
N-(3-Propane sulfonic acid)aniline
Poly(aniline)
Copolymerization
Copolymers
Electrodes
Electropolymerization
pH effects
Sensors
Electrochemical properties
Physiological conditions
Ketones
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00399140_v71_n4_p1684_Heras
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00399140_v71_n4_p1684_Heras
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spelling todo:paper_00399140_v71_n4_p1684_Heras2023-10-03T14:50:01Z Ascorbate amperometric determination using conducting copolymers from aniline and N-(3-propane sulfonic acid)aniline Heras, J.Y. Giacobone, A.F.F. Battaglini, F. Amperometric detection Ascorbate N-(3-Propane sulfonic acid)aniline Poly(aniline) Copolymerization Copolymers Electrodes Electropolymerization pH effects Sensors Amperometric detection Ascorbate Electrochemical properties Physiological conditions Ketones The sequential electrochemical polymerization of aniline and N-(3-propane sulfonic acid)aniline (PSA) is proposed to construct a sensor able to detect ascorbate at physiological conditions. Compared to poly(aniline) modified electrode, a device with improved conducting and electrochemical properties at neutral pH is obtained. The electrochemical copolymerization of the same starting materials is also carried out. For a PSA:aniline ratio of 10:90, a polymer with a similar electrochemical behavior to the one grown in the sequential mode is observed. The detection of ascorbate was tested for both configurations at pH 7.2, the modified electrode is able to determine ascorbate at 0 mV versus Ag/AgCl; an optimized sensor constructed by sequential polymerization can easily detect ascorbate concentrations with a detection limit of 2.2 μM. Uric acid and dopamine does not interfere in the ascorbate determination. © 2006 Elsevier B.V. All rights reserved. Fil:Battaglini, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00399140_v71_n4_p1684_Heras
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Amperometric detection
Ascorbate
N-(3-Propane sulfonic acid)aniline
Poly(aniline)
Copolymerization
Copolymers
Electrodes
Electropolymerization
pH effects
Sensors
Amperometric detection
Ascorbate
Electrochemical properties
Physiological conditions
Ketones
spellingShingle Amperometric detection
Ascorbate
N-(3-Propane sulfonic acid)aniline
Poly(aniline)
Copolymerization
Copolymers
Electrodes
Electropolymerization
pH effects
Sensors
Amperometric detection
Ascorbate
Electrochemical properties
Physiological conditions
Ketones
Heras, J.Y.
Giacobone, A.F.F.
Battaglini, F.
Ascorbate amperometric determination using conducting copolymers from aniline and N-(3-propane sulfonic acid)aniline
topic_facet Amperometric detection
Ascorbate
N-(3-Propane sulfonic acid)aniline
Poly(aniline)
Copolymerization
Copolymers
Electrodes
Electropolymerization
pH effects
Sensors
Amperometric detection
Ascorbate
Electrochemical properties
Physiological conditions
Ketones
description The sequential electrochemical polymerization of aniline and N-(3-propane sulfonic acid)aniline (PSA) is proposed to construct a sensor able to detect ascorbate at physiological conditions. Compared to poly(aniline) modified electrode, a device with improved conducting and electrochemical properties at neutral pH is obtained. The electrochemical copolymerization of the same starting materials is also carried out. For a PSA:aniline ratio of 10:90, a polymer with a similar electrochemical behavior to the one grown in the sequential mode is observed. The detection of ascorbate was tested for both configurations at pH 7.2, the modified electrode is able to determine ascorbate at 0 mV versus Ag/AgCl; an optimized sensor constructed by sequential polymerization can easily detect ascorbate concentrations with a detection limit of 2.2 μM. Uric acid and dopamine does not interfere in the ascorbate determination. © 2006 Elsevier B.V. All rights reserved.
format JOUR
author Heras, J.Y.
Giacobone, A.F.F.
Battaglini, F.
author_facet Heras, J.Y.
Giacobone, A.F.F.
Battaglini, F.
author_sort Heras, J.Y.
title Ascorbate amperometric determination using conducting copolymers from aniline and N-(3-propane sulfonic acid)aniline
title_short Ascorbate amperometric determination using conducting copolymers from aniline and N-(3-propane sulfonic acid)aniline
title_full Ascorbate amperometric determination using conducting copolymers from aniline and N-(3-propane sulfonic acid)aniline
title_fullStr Ascorbate amperometric determination using conducting copolymers from aniline and N-(3-propane sulfonic acid)aniline
title_full_unstemmed Ascorbate amperometric determination using conducting copolymers from aniline and N-(3-propane sulfonic acid)aniline
title_sort ascorbate amperometric determination using conducting copolymers from aniline and n-(3-propane sulfonic acid)aniline
url http://hdl.handle.net/20.500.12110/paper_00399140_v71_n4_p1684_Heras
work_keys_str_mv AT herasjy ascorbateamperometricdeterminationusingconductingcopolymersfromanilineandn3propanesulfonicacidaniline
AT giacoboneaff ascorbateamperometricdeterminationusingconductingcopolymersfromanilineandn3propanesulfonicacidaniline
AT battaglinif ascorbateamperometricdeterminationusingconductingcopolymersfromanilineandn3propanesulfonicacidaniline
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