A cubic silsesquioxane modified with purpald®: Preparation, characterization and a voltammetric application for determination of sulfite
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.electrochemsci.org/papers/vol8/80607565.pdf http://hdl.handle.net/11449/75594 |
Resumo: | A novel composite formed by interaction of a octa(3-chloropropyl)octasilsesquioxane modified with Purpald®, and its subsequent reaction with silver and hexacyanoferrate (III) (AgHSP), was synthesized and initially characterized by Fourier transform infrared spectra (FTIR) and cyclic voltammetry. The cyclic voltammogram of the modified graphite paste electrode with AgHSP, showed one redox couple with formal potential Eθ'=0.64V (vs Ag/AgCl, KNO3, 1.0 mol L-1; v = 20 mV s-1), attributed to the Fe2+(CN)6/ Fe3+(CN)6 process. The redox couple presents an electrocatalytic response for determination of sulfite. The modified electrode showed a linear response from 7.0×10-5 to 1.0×10-3 mol L-1 with the corresponding equation Y(μA) = 18.05 + 29.983×103 [sulfite], and a correlation coefficient of r=0.999. The method showed a detection limit of 0.115×10-4 mol L-1 with a relative standard deviation of ± 4% (n = 3) and amperometric sensitivity of 29.983×10-3A mol L-1. The modified electrode showed a excellent stability and good reproducibility during experiments. © 2013 by ESG. |
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Repositório Institucional da UNESP |
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A cubic silsesquioxane modified with purpald®: Preparation, characterization and a voltammetric application for determination of sulfiteGraphite paste electrodeOcta(3-chloropropyl)octasilsesquioxanePurpaldSulfiteVoltammetryA novel composite formed by interaction of a octa(3-chloropropyl)octasilsesquioxane modified with Purpald®, and its subsequent reaction with silver and hexacyanoferrate (III) (AgHSP), was synthesized and initially characterized by Fourier transform infrared spectra (FTIR) and cyclic voltammetry. The cyclic voltammogram of the modified graphite paste electrode with AgHSP, showed one redox couple with formal potential Eθ'=0.64V (vs Ag/AgCl, KNO3, 1.0 mol L-1; v = 20 mV s-1), attributed to the Fe2+(CN)6/ Fe3+(CN)6 process. The redox couple presents an electrocatalytic response for determination of sulfite. The modified electrode showed a linear response from 7.0×10-5 to 1.0×10-3 mol L-1 with the corresponding equation Y(μA) = 18.05 + 29.983×103 [sulfite], and a correlation coefficient of r=0.999. The method showed a detection limit of 0.115×10-4 mol L-1 with a relative standard deviation of ± 4% (n = 3) and amperometric sensitivity of 29.983×10-3A mol L-1. The modified electrode showed a excellent stability and good reproducibility during experiments. © 2013 by ESG.Faculdade de Engenharia de Ilha Solteira UNESP - Univ. Estadual Paulista Departamento de Física e Química, Av. Brasil Centro, 56, CEP 15385-000, Ilha Solteira, SPShanghai University Department of Chemistry College of Science, Shangda Road, 99, Zip Code 200444, BaoShan District, ShanghaiFaculdade de Engenharia de Ilha Solteira UNESP - Univ. Estadual Paulista Departamento de Física e Química, Av. Brasil Centro, 56, CEP 15385-000, Ilha Solteira, SPUniversidade Estadual Paulista (Unesp)Shanghai UniversitySoares, Layciane Aparecida [UNESP]Yingzi, Wangda Silveira, Tayla Fernanda Serantoni [UNESP]Silvestrini, Daniela Rodrigues [UNESP]de Oliveira Bicalho, Urquisa [UNESP]Filho, Newton Luiz Dias [UNESP]do Carmo, Devaney Ribeiro [UNESP]2014-05-27T11:29:38Z2014-05-27T11:29:38Z2013-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article7565-7580application/pdfhttp://www.electrochemsci.org/papers/vol8/80607565.pdfInternational Journal of Electrochemical Science, v. 8, n. 6, p. 7565-7580, 2013.1452-3981http://hdl.handle.net/11449/755942-s2.0-848789983512-s2.0-84878998351.pdf16147456978700030545046720519536Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengInternational Journal of Electrochemical Science1.3690,366info:eu-repo/semantics/openAccess2024-07-10T14:08:18Zoai:repositorio.unesp.br:11449/75594Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:09:25.650587Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A cubic silsesquioxane modified with purpald®: Preparation, characterization and a voltammetric application for determination of sulfite |
title |
A cubic silsesquioxane modified with purpald®: Preparation, characterization and a voltammetric application for determination of sulfite |
spellingShingle |
A cubic silsesquioxane modified with purpald®: Preparation, characterization and a voltammetric application for determination of sulfite Soares, Layciane Aparecida [UNESP] Graphite paste electrode Octa(3-chloropropyl)octasilsesquioxane Purpald Sulfite Voltammetry |
title_short |
A cubic silsesquioxane modified with purpald®: Preparation, characterization and a voltammetric application for determination of sulfite |
title_full |
A cubic silsesquioxane modified with purpald®: Preparation, characterization and a voltammetric application for determination of sulfite |
title_fullStr |
A cubic silsesquioxane modified with purpald®: Preparation, characterization and a voltammetric application for determination of sulfite |
title_full_unstemmed |
A cubic silsesquioxane modified with purpald®: Preparation, characterization and a voltammetric application for determination of sulfite |
title_sort |
A cubic silsesquioxane modified with purpald®: Preparation, characterization and a voltammetric application for determination of sulfite |
author |
Soares, Layciane Aparecida [UNESP] |
author_facet |
Soares, Layciane Aparecida [UNESP] Yingzi, Wang da Silveira, Tayla Fernanda Serantoni [UNESP] Silvestrini, Daniela Rodrigues [UNESP] de Oliveira Bicalho, Urquisa [UNESP] Filho, Newton Luiz Dias [UNESP] do Carmo, Devaney Ribeiro [UNESP] |
author_role |
author |
author2 |
Yingzi, Wang da Silveira, Tayla Fernanda Serantoni [UNESP] Silvestrini, Daniela Rodrigues [UNESP] de Oliveira Bicalho, Urquisa [UNESP] Filho, Newton Luiz Dias [UNESP] do Carmo, Devaney Ribeiro [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Shanghai University |
dc.contributor.author.fl_str_mv |
Soares, Layciane Aparecida [UNESP] Yingzi, Wang da Silveira, Tayla Fernanda Serantoni [UNESP] Silvestrini, Daniela Rodrigues [UNESP] de Oliveira Bicalho, Urquisa [UNESP] Filho, Newton Luiz Dias [UNESP] do Carmo, Devaney Ribeiro [UNESP] |
dc.subject.por.fl_str_mv |
Graphite paste electrode Octa(3-chloropropyl)octasilsesquioxane Purpald Sulfite Voltammetry |
topic |
Graphite paste electrode Octa(3-chloropropyl)octasilsesquioxane Purpald Sulfite Voltammetry |
description |
A novel composite formed by interaction of a octa(3-chloropropyl)octasilsesquioxane modified with Purpald®, and its subsequent reaction with silver and hexacyanoferrate (III) (AgHSP), was synthesized and initially characterized by Fourier transform infrared spectra (FTIR) and cyclic voltammetry. The cyclic voltammogram of the modified graphite paste electrode with AgHSP, showed one redox couple with formal potential Eθ'=0.64V (vs Ag/AgCl, KNO3, 1.0 mol L-1; v = 20 mV s-1), attributed to the Fe2+(CN)6/ Fe3+(CN)6 process. The redox couple presents an electrocatalytic response for determination of sulfite. The modified electrode showed a linear response from 7.0×10-5 to 1.0×10-3 mol L-1 with the corresponding equation Y(μA) = 18.05 + 29.983×103 [sulfite], and a correlation coefficient of r=0.999. The method showed a detection limit of 0.115×10-4 mol L-1 with a relative standard deviation of ± 4% (n = 3) and amperometric sensitivity of 29.983×10-3A mol L-1. The modified electrode showed a excellent stability and good reproducibility during experiments. © 2013 by ESG. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-06-01 2014-05-27T11:29:38Z 2014-05-27T11:29:38Z |
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://www.electrochemsci.org/papers/vol8/80607565.pdf International Journal of Electrochemical Science, v. 8, n. 6, p. 7565-7580, 2013. 1452-3981 http://hdl.handle.net/11449/75594 2-s2.0-84878998351 2-s2.0-84878998351.pdf 1614745697870003 0545046720519536 |
url |
http://www.electrochemsci.org/papers/vol8/80607565.pdf http://hdl.handle.net/11449/75594 |
identifier_str_mv |
International Journal of Electrochemical Science, v. 8, n. 6, p. 7565-7580, 2013. 1452-3981 2-s2.0-84878998351 2-s2.0-84878998351.pdf 1614745697870003 0545046720519536 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
International Journal of Electrochemical Science 1.369 0,366 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
7565-7580 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_ |
1808129590533554176 |