Determination of Glyphosate in Water Samples by Multi-pumping Flow System Coupled to a Liquid Waveguide Capillary Cell

Detalhes bibliográficos
Autor(a) principal: Silva, Aline S. [UNESP]
Data de Publicação: 2011
Outros Autores: Toth, Ildiko V., Pezza, Leonardo [UNESP], Pezza, Helena Redigolo [UNESP], Lima, Jose L. F. C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.2116/analsci.27.1031
http://hdl.handle.net/11449/26113
Resumo: A simple screening method was developed for the determination of glyphosate in water samples using a multi-pumping flow system. The proposed method is based on the reaction between glyphosate and p-dimethylaminocinnamaldehyde (p-DAC), in an acid medium where the reaction product can be measured spectrophotometrically at lambda(max) = 495 nm. An experimental design methodology was used to optimize the measurement conditions. The proposed method was applied to the determination of glyphosate in water samples in a concentration range from 0.5 to 10 mu g mL(-1). The limit of detection and quantification were 0.17 and 0.53 mu g mL(-1), respectively. The results obtained (88.5 to 104.5%) in recovery studies for the determination of glyphosate in different water samples indicated good accuracy and no matrix effect for the developed method. Samples were also analyzed by a confirmatory HPLC method, and agreement within the two set of results was found.
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spelling Determination of Glyphosate in Water Samples by Multi-pumping Flow System Coupled to a Liquid Waveguide Capillary CellA simple screening method was developed for the determination of glyphosate in water samples using a multi-pumping flow system. The proposed method is based on the reaction between glyphosate and p-dimethylaminocinnamaldehyde (p-DAC), in an acid medium where the reaction product can be measured spectrophotometrically at lambda(max) = 495 nm. An experimental design methodology was used to optimize the measurement conditions. The proposed method was applied to the determination of glyphosate in water samples in a concentration range from 0.5 to 10 mu g mL(-1). The limit of detection and quantification were 0.17 and 0.53 mu g mL(-1), respectively. The results obtained (88.5 to 104.5%) in recovery studies for the determination of glyphosate in different water samples indicated good accuracy and no matrix effect for the developed method. Samples were also analyzed by a confirmatory HPLC method, and agreement within the two set of results was found.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)FSEMCTES (Ministerio da Ciencia, Tecnologia e Ensino Superior)Univ Porto, Fac Farm, Dept Quim, REQUIMTE, P-4099030 Oporto, PortugalUniv Estadual Paulista UNESP, Inst Quim, BR-14801970 Araraquara, SP, BrazilUniv Estadual Paulista UNESP, Inst Quim, BR-14801970 Araraquara, SP, BrazilJapan Soc Analytical ChemistryUniversidade do PortoUniversidade Estadual Paulista (Unesp)Silva, Aline S. [UNESP]Toth, Ildiko V.Pezza, Leonardo [UNESP]Pezza, Helena Redigolo [UNESP]Lima, Jose L. F. C.2014-05-20T14:20:20Z2014-05-20T14:20:20Z2011-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1031-1036http://dx.doi.org/10.2116/analsci.27.1031Analytical Sciences. Tokyo: Japan Soc Analytical Chemistry, v. 27, n. 10, p. 1031-1036, 2011.0910-6340http://hdl.handle.net/11449/2611310.2116/analsci.27.1031WOS:000296315900010597890859185352431921250983611210000-0003-0197-7369Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAnalytical Sciences1.3550,424info:eu-repo/semantics/openAccess2021-10-23T11:16:28Zoai:repositorio.unesp.br:11449/26113Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:13:36.977235Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Determination of Glyphosate in Water Samples by Multi-pumping Flow System Coupled to a Liquid Waveguide Capillary Cell
title Determination of Glyphosate in Water Samples by Multi-pumping Flow System Coupled to a Liquid Waveguide Capillary Cell
spellingShingle Determination of Glyphosate in Water Samples by Multi-pumping Flow System Coupled to a Liquid Waveguide Capillary Cell
Silva, Aline S. [UNESP]
title_short Determination of Glyphosate in Water Samples by Multi-pumping Flow System Coupled to a Liquid Waveguide Capillary Cell
title_full Determination of Glyphosate in Water Samples by Multi-pumping Flow System Coupled to a Liquid Waveguide Capillary Cell
title_fullStr Determination of Glyphosate in Water Samples by Multi-pumping Flow System Coupled to a Liquid Waveguide Capillary Cell
title_full_unstemmed Determination of Glyphosate in Water Samples by Multi-pumping Flow System Coupled to a Liquid Waveguide Capillary Cell
title_sort Determination of Glyphosate in Water Samples by Multi-pumping Flow System Coupled to a Liquid Waveguide Capillary Cell
author Silva, Aline S. [UNESP]
author_facet Silva, Aline S. [UNESP]
Toth, Ildiko V.
Pezza, Leonardo [UNESP]
Pezza, Helena Redigolo [UNESP]
Lima, Jose L. F. C.
author_role author
author2 Toth, Ildiko V.
Pezza, Leonardo [UNESP]
Pezza, Helena Redigolo [UNESP]
Lima, Jose L. F. C.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Porto
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Silva, Aline S. [UNESP]
Toth, Ildiko V.
Pezza, Leonardo [UNESP]
Pezza, Helena Redigolo [UNESP]
Lima, Jose L. F. C.
description A simple screening method was developed for the determination of glyphosate in water samples using a multi-pumping flow system. The proposed method is based on the reaction between glyphosate and p-dimethylaminocinnamaldehyde (p-DAC), in an acid medium where the reaction product can be measured spectrophotometrically at lambda(max) = 495 nm. An experimental design methodology was used to optimize the measurement conditions. The proposed method was applied to the determination of glyphosate in water samples in a concentration range from 0.5 to 10 mu g mL(-1). The limit of detection and quantification were 0.17 and 0.53 mu g mL(-1), respectively. The results obtained (88.5 to 104.5%) in recovery studies for the determination of glyphosate in different water samples indicated good accuracy and no matrix effect for the developed method. Samples were also analyzed by a confirmatory HPLC method, and agreement within the two set of results was found.
publishDate 2011
dc.date.none.fl_str_mv 2011-10-01
2014-05-20T14:20:20Z
2014-05-20T14:20:20Z
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.27.1031
Analytical Sciences. Tokyo: Japan Soc Analytical Chemistry, v. 27, n. 10, p. 1031-1036, 2011.
0910-6340
http://hdl.handle.net/11449/26113
10.2116/analsci.27.1031
WOS:000296315900010
5978908591853524
3192125098361121
0000-0003-0197-7369
url http://dx.doi.org/10.2116/analsci.27.1031
http://hdl.handle.net/11449/26113
identifier_str_mv Analytical Sciences. Tokyo: Japan Soc Analytical Chemistry, v. 27, n. 10, p. 1031-1036, 2011.
0910-6340
10.2116/analsci.27.1031
WOS:000296315900010
5978908591853524
3192125098361121
0000-0003-0197-7369
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 1031-1036
dc.publisher.none.fl_str_mv Japan Soc Analytical Chemistry
publisher.none.fl_str_mv Japan Soc Analytical Chemistry
dc.source.none.fl_str_mv Web of Science
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
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