Sensor for hydrogen peroxide based on Prussian Blue modified electrode: Improvement of the operational stability

Detalhes bibliográficos
Autor(a) principal: De Mattos, Ivanildo Luiz [UNESP]
Data de Publicação: 2000
Outros Autores: Gorton, Lo, Ruzgas, Tautgirdas, Karyakin, Arkady A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.2116/analsci.16.795
http://hdl.handle.net/11449/66248
Resumo: Improvement of the operational stability of amperometric sensors based on Prussian Blue (PB) modified glassy carbon electrodes is presented. The long term performance of the sensors was evaluated by injection of hydrogen peroxide (5 μM in potassium buffer) solutions in a flow-injection system during a period of 5-10 h. The following parameters were investigated and correlated with the performance of the sensor: the times for electrodeposition and electrochemical activation, temperature, storage time, pH, composition of the buffer solution and of volume sample injected. These analytical characteristics of the modified electrode can be emphasized: initial sensitivity of 0.3 A cm-2 M-1, detection limit of ca. 0.5 μM, precise results (r.s.d.< 1.5%) and possibility to carry out around 50 samples (50 μL) per hour.
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spelling Sensor for hydrogen peroxide based on Prussian Blue modified electrode: Improvement of the operational stabilitybufferferric ferrocyanidehydrogen peroxidechemical modificationelectrochemistryelectrodeflow injection analysispH measurementreaction analysissensorImprovement of the operational stability of amperometric sensors based on Prussian Blue (PB) modified glassy carbon electrodes is presented. The long term performance of the sensors was evaluated by injection of hydrogen peroxide (5 μM in potassium buffer) solutions in a flow-injection system during a period of 5-10 h. The following parameters were investigated and correlated with the performance of the sensor: the times for electrodeposition and electrochemical activation, temperature, storage time, pH, composition of the buffer solution and of volume sample injected. These analytical characteristics of the modified electrode can be emphasized: initial sensitivity of 0.3 A cm-2 M-1, detection limit of ca. 0.5 μM, precise results (r.s.d.< 1.5%) and possibility to carry out around 50 samples (50 μL) per hour.Departamento de Química Faculdade de Ciências UNESP, P. O. Box 473, 17033-360 Bauru-SPDepartment of Analytical Chemistry Lund University, P. O. Box 124, SE-22100 LundDepartment of Chemistry M. V. Lomonosov Moscow State UniversityDepartamento de Química Faculdade de Ciências UNESP, P. O. Box 473, 17033-360 Bauru-SPUniversidade Estadual Paulista (Unesp)Lund UniversityM. V. Lomonosov Moscow State UniversityDe Mattos, Ivanildo Luiz [UNESP]Gorton, LoRuzgas, TautgirdasKaryakin, Arkady A.2014-05-27T11:19:57Z2014-05-27T11:19:57Z2000-09-13info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article795-798application/pdfhttp://dx.doi.org/10.2116/analsci.16.795Analytical Sciences, v. 16, n. 8, p. 795-798, 2000.0910-6340http://hdl.handle.net/11449/6624810.2116/analsci.16.795WOS:0000889492000032-s2.0-0033846525WOS000088949200003.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAnalytical Sciences1.3550,424info:eu-repo/semantics/openAccess2024-04-29T18:16:49Zoai:repositorio.unesp.br:11449/66248Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-29T18:16:49Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Sensor for hydrogen peroxide based on Prussian Blue modified electrode: Improvement of the operational stability
title Sensor for hydrogen peroxide based on Prussian Blue modified electrode: Improvement of the operational stability
spellingShingle Sensor for hydrogen peroxide based on Prussian Blue modified electrode: Improvement of the operational stability
De Mattos, Ivanildo Luiz [UNESP]
buffer
ferric ferrocyanide
hydrogen peroxide
chemical modification
electrochemistry
electrode
flow injection analysis
pH measurement
reaction analysis
sensor
title_short Sensor for hydrogen peroxide based on Prussian Blue modified electrode: Improvement of the operational stability
title_full Sensor for hydrogen peroxide based on Prussian Blue modified electrode: Improvement of the operational stability
title_fullStr Sensor for hydrogen peroxide based on Prussian Blue modified electrode: Improvement of the operational stability
title_full_unstemmed Sensor for hydrogen peroxide based on Prussian Blue modified electrode: Improvement of the operational stability
title_sort Sensor for hydrogen peroxide based on Prussian Blue modified electrode: Improvement of the operational stability
author De Mattos, Ivanildo Luiz [UNESP]
author_facet De Mattos, Ivanildo Luiz [UNESP]
Gorton, Lo
Ruzgas, Tautgirdas
Karyakin, Arkady A.
author_role author
author2 Gorton, Lo
Ruzgas, Tautgirdas
Karyakin, Arkady A.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Lund University
M. V. Lomonosov Moscow State University
dc.contributor.author.fl_str_mv De Mattos, Ivanildo Luiz [UNESP]
Gorton, Lo
Ruzgas, Tautgirdas
Karyakin, Arkady A.
dc.subject.por.fl_str_mv buffer
ferric ferrocyanide
hydrogen peroxide
chemical modification
electrochemistry
electrode
flow injection analysis
pH measurement
reaction analysis
sensor
topic buffer
ferric ferrocyanide
hydrogen peroxide
chemical modification
electrochemistry
electrode
flow injection analysis
pH measurement
reaction analysis
sensor
description Improvement of the operational stability of amperometric sensors based on Prussian Blue (PB) modified glassy carbon electrodes is presented. The long term performance of the sensors was evaluated by injection of hydrogen peroxide (5 μM in potassium buffer) solutions in a flow-injection system during a period of 5-10 h. The following parameters were investigated and correlated with the performance of the sensor: the times for electrodeposition and electrochemical activation, temperature, storage time, pH, composition of the buffer solution and of volume sample injected. These analytical characteristics of the modified electrode can be emphasized: initial sensitivity of 0.3 A cm-2 M-1, detection limit of ca. 0.5 μM, precise results (r.s.d.< 1.5%) and possibility to carry out around 50 samples (50 μL) per hour.
publishDate 2000
dc.date.none.fl_str_mv 2000-09-13
2014-05-27T11:19:57Z
2014-05-27T11:19:57Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.2116/analsci.16.795
Analytical Sciences, v. 16, n. 8, p. 795-798, 2000.
0910-6340
http://hdl.handle.net/11449/66248
10.2116/analsci.16.795
WOS:000088949200003
2-s2.0-0033846525
WOS000088949200003.pdf
url http://dx.doi.org/10.2116/analsci.16.795
http://hdl.handle.net/11449/66248
identifier_str_mv Analytical Sciences, v. 16, n. 8, p. 795-798, 2000.
0910-6340
10.2116/analsci.16.795
WOS:000088949200003
2-s2.0-0033846525
WOS000088949200003.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Analytical Sciences
1.355
0,424
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 795-798
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1803649554443141120

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