Ascorbate amperometric determination using conducting copolymers from aniline and N-(3-propane sulfonic acid)aniline
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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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00399140_v71_n4_p1684_Heras http://hdl.handle.net/20.500.12110/paper_00399140_v71_n4_p1684_Heras |
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paper:paper_00399140_v71_n4_p1684_Heras2023-06-08T15:03:44Z Ascorbate amperometric determination using conducting copolymers from aniline and N-(3-propane sulfonic acid)aniline Battaglini, Fernando 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. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00399140_v71_n4_p1684_Heras 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 Battaglini, Fernando 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. |
author |
Battaglini, Fernando |
author_facet |
Battaglini, Fernando |
author_sort |
Battaglini, Fernando |
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 |
publishDate |
2007 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00399140_v71_n4_p1684_Heras http://hdl.handle.net/20.500.12110/paper_00399140_v71_n4_p1684_Heras |
work_keys_str_mv |
AT battaglinifernando ascorbateamperometricdeterminationusingconductingcopolymersfromanilineandn3propanesulfonicacidaniline |
_version_ |
1768546200624037888 |