Differential Pulse Voltammetric Determination of Nitrite with Gold Ultramicroelectrode

Detalhes bibliográficos
Autor(a) principal: Da Silva, Sonia Maria [UNESP]
Data de Publicação: 1998
Outros Autores: Mazo, Luiz Henrique
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1002/(SICI)1521-4109(199811)10:17<1200
http://hdl.handle.net/11449/223817
Resumo: The application of disk shaped gold ullramicroelectrode for nitrite determination with and without addition of supporting electrolyte was studied using the differential pulse voltammetric method. The well-defined peak for nitrite oxidation near 0.8 V (vs. Ag/AgCl reference electrode) was used to obtain analytical plots in the concentration range from 0.1 to 0.6 mmol L-1 and from 10.0 to 50.0 μmol.L-1. The calculated detection limit was 0.65 μmol.L-1 in purified water, in the absence of supporting electrolyte, with relative standard deviation of 1.36% (n = 6) for analyzing 10.0μmol L-1 nitrite solutions, and accuracy of 100.9 %, based on recovery studies. The application of this analytical method to mineral and river water samples of natural pH also showed improved sensitivity when compared with the linear sweep voltammetric method previously reported.
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spelling Differential Pulse Voltammetric Determination of Nitrite with Gold UltramicroelectrodeDifferential pulse voltammetryNatural waterNitriteUltramicroelectrodesThe application of disk shaped gold ullramicroelectrode for nitrite determination with and without addition of supporting electrolyte was studied using the differential pulse voltammetric method. The well-defined peak for nitrite oxidation near 0.8 V (vs. Ag/AgCl reference electrode) was used to obtain analytical plots in the concentration range from 0.1 to 0.6 mmol L-1 and from 10.0 to 50.0 μmol.L-1. The calculated detection limit was 0.65 μmol.L-1 in purified water, in the absence of supporting electrolyte, with relative standard deviation of 1.36% (n = 6) for analyzing 10.0μmol L-1 nitrite solutions, and accuracy of 100.9 %, based on recovery studies. The application of this analytical method to mineral and river water samples of natural pH also showed improved sensitivity when compared with the linear sweep voltammetric method previously reported.Departamento de Química Instituto de Biociências UNESP, Caixa Postal 510, CEP 18618-000, Botucatu, SPInst. de Quim. de São Carlos Universidade de São Paulo, Caixa Postal 780, CEP 13560-970, São Carlos, SPDepartamento de Química Instituto de Biociências UNESP, Caixa Postal 510, CEP 18618-000, Botucatu, SPUniversidade Estadual Paulista (UNESP)Universidade de São Paulo (USP)Da Silva, Sonia Maria [UNESP]Mazo, Luiz Henrique2022-04-28T19:53:16Z2022-04-28T19:53:16Z1998-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1200-1203http://dx.doi.org/10.1002/(SICI)1521-4109(199811)10:17<1200Electroanalysis, v. 10, n. 17, p. 1200-1203, 1998.1040-0397http://hdl.handle.net/11449/22381710.1002/(SICI)1521-4109(199811)10:17<12002-s2.0-0000681780Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengElectroanalysisinfo:eu-repo/semantics/openAccess2022-04-28T19:53:16Zoai:repositorio.unesp.br:11449/223817Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:49:24.060128Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Differential Pulse Voltammetric Determination of Nitrite with Gold Ultramicroelectrode
title Differential Pulse Voltammetric Determination of Nitrite with Gold Ultramicroelectrode
spellingShingle Differential Pulse Voltammetric Determination of Nitrite with Gold Ultramicroelectrode
Da Silva, Sonia Maria [UNESP]
Differential pulse voltammetry
Natural water
Nitrite
Ultramicroelectrodes
title_short Differential Pulse Voltammetric Determination of Nitrite with Gold Ultramicroelectrode
title_full Differential Pulse Voltammetric Determination of Nitrite with Gold Ultramicroelectrode
title_fullStr Differential Pulse Voltammetric Determination of Nitrite with Gold Ultramicroelectrode
title_full_unstemmed Differential Pulse Voltammetric Determination of Nitrite with Gold Ultramicroelectrode
title_sort Differential Pulse Voltammetric Determination of Nitrite with Gold Ultramicroelectrode
author Da Silva, Sonia Maria [UNESP]
author_facet Da Silva, Sonia Maria [UNESP]
Mazo, Luiz Henrique
author_role author
author2 Mazo, Luiz Henrique
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv Da Silva, Sonia Maria [UNESP]
Mazo, Luiz Henrique
dc.subject.por.fl_str_mv Differential pulse voltammetry
Natural water
Nitrite
Ultramicroelectrodes
topic Differential pulse voltammetry
Natural water
Nitrite
Ultramicroelectrodes
description The application of disk shaped gold ullramicroelectrode for nitrite determination with and without addition of supporting electrolyte was studied using the differential pulse voltammetric method. The well-defined peak for nitrite oxidation near 0.8 V (vs. Ag/AgCl reference electrode) was used to obtain analytical plots in the concentration range from 0.1 to 0.6 mmol L-1 and from 10.0 to 50.0 μmol.L-1. The calculated detection limit was 0.65 μmol.L-1 in purified water, in the absence of supporting electrolyte, with relative standard deviation of 1.36% (n = 6) for analyzing 10.0μmol L-1 nitrite solutions, and accuracy of 100.9 %, based on recovery studies. The application of this analytical method to mineral and river water samples of natural pH also showed improved sensitivity when compared with the linear sweep voltammetric method previously reported.
publishDate 1998
dc.date.none.fl_str_mv 1998-01-01
2022-04-28T19:53:16Z
2022-04-28T19:53:16Z
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/10.1002/(SICI)1521-4109(199811)10:17<1200
Electroanalysis, v. 10, n. 17, p. 1200-1203, 1998.
1040-0397
http://hdl.handle.net/11449/223817
10.1002/(SICI)1521-4109(199811)10:17<1200
2-s2.0-0000681780
url http://dx.doi.org/10.1002/(SICI)1521-4109(199811)10:17<1200
http://hdl.handle.net/11449/223817
identifier_str_mv Electroanalysis, v. 10, n. 17, p. 1200-1203, 1998.
1040-0397
10.1002/(SICI)1521-4109(199811)10:17<1200
2-s2.0-0000681780
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Electroanalysis
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1200-1203
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_ 1808129362283724800

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