Publicação
Voltammetric behavior of a modified electrode with azide copper octa(3-aminopropyl)octasilsesquioxane composite in the oxidation of ascorbic acid
| Resumo: | A novel nanostructured composite, azide copper octa (3-aminopropyl)octasilsesquioxane (ASCA) was incorporated into a graphite paste electrode and the electrochemical studies were conducted with cyclic voltammetry. The cyclic voltammogram of the modified graphite paste electrode with ASCA (GPE-ASCA), showed one redox couple with formal potential (Eθ) = 0.30 V and an irreversible process at 1.1 V (vs Ag/AgCl; NaCl 1.0 mol L-1; v = 20 mV s-1). The redox couple with (Eθ) = 0.30V presents an electrocatalytic response for determination of ascorbic acid. The modified electrode gives a linear range from 1.0×10-4 -1.0×10-3 mol L-1 (r = 0.998) for the determination of ascorbic acid with detection limit of 6.9×10-5 mol L-1 and standard deviation of 2.3% for n = 3. The amperometric sensitivity was 122.1 mA/mol L-1 for ascorbic acid. The application this electrode was tested and ascorbic acid in three commercial pharmaceutical product (Cebion, Cewin and Redoxon) have been determined. © 2011 by ESG. |
|---|---|
| Autores principais: | do Carmo, Devaney Ribeiro |
| Outros Autores: | Paim, Leonardo Lataro; Silvestrini, Daniela Rodrigues; de Sá, Acelino Cardoso; de Oliveira Bicalho, Urquisa; Stradiotto, Nelson Ramos |
| Assunto: | Ascorbic acid Graphite paste electrode Modified electrode Silsesquioxane Voltammetry |
| Ano: | 2022 |
| País: | Brasil |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | IBICT |
| Idioma: | inglês |
| Origem: | Oasisbr |
| _version_ | 1871589523971899392 |
|---|---|
| author | do Carmo, Devaney Ribeiro |
| author2 | Paim, Leonardo Lataro Silvestrini, Daniela Rodrigues de Sá, Acelino Cardoso de Oliveira Bicalho, Urquisa Stradiotto, Nelson Ramos |
| author2_role | author author author author author |
| author_facet | do Carmo, Devaney Ribeiro Paim, Leonardo Lataro Silvestrini, Daniela Rodrigues de Sá, Acelino Cardoso de Oliveira Bicalho, Urquisa Stradiotto, Nelson Ramos |
| author_role | author |
| country_str | BR |
| creators_json_txt | [{\"Person.name\":\"do Carmo, Devaney Ribeiro\"},{\"Person.name\":\"Paim, Leonardo Lataro\"},{\"Person.name\":\"Silvestrini, Daniela Rodrigues\"},{\"Person.name\":\"de Sá, Acelino Cardoso\"},{\"Person.name\":\"de Oliveira Bicalho, Urquisa\"},{\"Person.name\":\"Stradiotto, Nelson Ramos\"}] |
| datacite.creators.creator.creatorName.fl_str_mv | do Carmo, Devaney Ribeiro Paim, Leonardo Lataro Silvestrini, Daniela Rodrigues de Sá, Acelino Cardoso de Oliveira Bicalho, Urquisa Stradiotto, Nelson Ramos |
| datacite.date.Accepted.fl_str_mv | 2011-04-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2022-04-28T22:37:16Z |
| datacite.date.embargoed.fl_str_mv | 2022-04-28T22:37:16Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Ascorbic acid Graphite paste electrode Modified electrode Silsesquioxane Voltammetry |
| datacite.titles.title.fl_str_mv | Voltammetric behavior of a modified electrode with azide copper octa(3-aminopropyl)octasilsesquioxane composite in the oxidation of ascorbic acid |
| dc.creator.none.fl_str_mv | do Carmo, Devaney Ribeiro Paim, Leonardo Lataro Silvestrini, Daniela Rodrigues de Sá, Acelino Cardoso de Oliveira Bicalho, Urquisa Stradiotto, Nelson Ramos |
| dc.date.Accepted.fl_str_mv | 2011-04-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2022-04-28T22:37:16Z |
| dc.date.embargoed.fl_str_mv | 2022-04-28T22:37:16Z |
| dc.format.none.fl_str_mv | 1175-1188 |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/11449/226312 |
| dc.language.none.fl_str_mv | eng |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.source.none.fl_str_mv | reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
| dc.subject.none.fl_str_mv | Ascorbic acid Graphite paste electrode Modified electrode Silsesquioxane Voltammetry |
| dc.title.fl_str_mv | Voltammetric behavior of a modified electrode with azide copper octa(3-aminopropyl)octasilsesquioxane composite in the oxidation of ascorbic acid |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | A novel nanostructured composite, azide copper octa (3-aminopropyl)octasilsesquioxane (ASCA) was incorporated into a graphite paste electrode and the electrochemical studies were conducted with cyclic voltammetry. The cyclic voltammogram of the modified graphite paste electrode with ASCA (GPE-ASCA), showed one redox couple with formal potential (Eθ) = 0.30 V and an irreversible process at 1.1 V (vs Ag/AgCl; NaCl 1.0 mol L-1; v = 20 mV s-1). The redox couple with (Eθ) = 0.30V presents an electrocatalytic response for determination of ascorbic acid. The modified electrode gives a linear range from 1.0×10-4 -1.0×10-3 mol L-1 (r = 0.998) for the determination of ascorbic acid with detection limit of 6.9×10-5 mol L-1 and standard deviation of 2.3% for n = 3. The amperometric sensitivity was 122.1 mA/mol L-1 for ascorbic acid. The application this electrode was tested and ascorbic acid in three commercial pharmaceutical product (Cebion, Cewin and Redoxon) have been determined. © 2011 by ESG. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| id | oasisbr_ef732cc3a50b3ab1b4fccac78331476c |
| identifier.url.fl_str_mv | http://hdl.handle.net/11449/226312 |
| inst_facet_str | urn:organizationAcronym:oasisbr{{{_:::_}}}IBICT |
| instacron_str | OASISBR |
| institution | IBICT |
| instname_str | IBICT |
| language | eng |
| network_acronym_str | oasisbr |
| network_name_str | Oasisbr |
| oai_identifier_str | oai:repositorio.unesp.br:11449/226312 |
| organization_str_mv | urn:organizationAcronym:oasisbr |
| person_str_mv | do Carmo, Devaney Ribeiro Paim, Leonardo Lataro Silvestrini, Daniela Rodrigues de Sá, Acelino Cardoso de Oliveira Bicalho, Urquisa Stradiotto, Nelson Ramos |
| publishDate | 2022 |
| repo_facet_str | urn:repositoryAcronym:oasisbr{{{_:::_}}}Oasisbr |
| reponame_str | Oasisbr |
| repository_id_str | urn:repositoryAcronym:oasisbr |
| service_str_mv | urn:repositoryAcronym:oasisbr |
| spelling | Voltammetric behavior of a modified electrode with azide copper octa(3-aminopropyl)octasilsesquioxane composite in the oxidation of ascorbic aciddo Carmo, Devaney RibeiroPaim, Leonardo LataroSilvestrini, Daniela Rodriguesde Sá, Acelino Cardosode Oliveira Bicalho, UrquisaStradiotto, Nelson RamosAscorbic acidGraphite paste electrodeModified electrodeSilsesquioxaneVoltammetryopen accesshttp://purl.org/coar/access_right/c_abf2http://hdl.handle.net/11449/226312HandleInternational Journal of Electrochemical Science, v. 6, n. 4, p. 1175-1188, 2011.N/AHasVersion1452-3981N/AHasVersion2-s2.0-79955151633N/AHasVersionhttp://hdl.handle.net/11449/226312Handle2022-04-28T22:37:16Z2022-04-282011-04-01T00:00:00ZA novel nanostructured composite, azide copper octa (3-aminopropyl)octasilsesquioxane (ASCA) was incorporated into a graphite paste electrode and the electrochemical studies were conducted with cyclic voltammetry. The cyclic voltammogram of the modified graphite paste electrode with ASCA (GPE-ASCA), showed one redox couple with formal potential (Eθ) = 0.30 V and an irreversible process at 1.1 V (vs Ag/AgCl; NaCl 1.0 mol L-1; v = 20 mV s-1). The redox couple with (Eθ) = 0.30V presents an electrocatalytic response for determination of ascorbic acid. The modified electrode gives a linear range from 1.0×10-4 -1.0×10-3 mol L-1 (r = 0.998) for the determination of ascorbic acid with detection limit of 6.9×10-5 mol L-1 and standard deviation of 2.3% for n = 3. The amperometric sensitivity was 122.1 mA/mol L-1 for ascorbic acid. The application this electrode was tested and ascorbic acid in three commercial pharmaceutical product (Cebion, Cewin and Redoxon) have been determined. © 2011 by ESG.eng1175-1188reponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPjournal articlehttp://purl.org/coar/resource_type/c_6501literatureVoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85 |
| spellingShingle | Voltammetric behavior of a modified electrode with azide copper octa(3-aminopropyl)octasilsesquioxane composite in the oxidation of ascorbic acid do Carmo, Devaney Ribeiro Ascorbic acid Graphite paste electrode Modified electrode Silsesquioxane Voltammetry |
| status | SINGLETON |
| status_str | VoR |
| subject.fl_str_mv | Ascorbic acid Graphite paste electrode Modified electrode Silsesquioxane Voltammetry |
| title | Voltammetric behavior of a modified electrode with azide copper octa(3-aminopropyl)octasilsesquioxane composite in the oxidation of ascorbic acid |
| title_full | Voltammetric behavior of a modified electrode with azide copper octa(3-aminopropyl)octasilsesquioxane composite in the oxidation of ascorbic acid |
| title_fullStr | Voltammetric behavior of a modified electrode with azide copper octa(3-aminopropyl)octasilsesquioxane composite in the oxidation of ascorbic acid |
| title_full_unstemmed | Voltammetric behavior of a modified electrode with azide copper octa(3-aminopropyl)octasilsesquioxane composite in the oxidation of ascorbic acid |
| title_short | Voltammetric behavior of a modified electrode with azide copper octa(3-aminopropyl)octasilsesquioxane composite in the oxidation of ascorbic acid |
| title_sort | Voltammetric behavior of a modified electrode with azide copper octa(3-aminopropyl)octasilsesquioxane composite in the oxidation of ascorbic acid |
| topic | Ascorbic acid Graphite paste electrode Modified electrode Silsesquioxane Voltammetry |
| topic_facet | Ascorbic acid Graphite paste electrode Modified electrode Silsesquioxane Voltammetry |
| url | http://hdl.handle.net/11449/226312 |
| visible | 1 |
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