Application of solid-phase microextraction technique to the determination of pesticides and evaluation of matrix effect on water

Detalhes bibliográficos
Autor(a) principal: Vitor Paulo Andrade da Silva
Data de Publicação: 2013
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Biblioteca Digital de Teses e Dissertações da UFC
Texto Completo: http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16812
Resumo: This paper investigates a strategy as a quality control parameter, using standard surrogate and determination of an relation factor (Rf) for determination of pesticides parathion-methyl, chlorpyrifos and cypermethrin in aqueous environmental matrices with different characteristics: river water, estuarine, seawater and weir, using technique SPME-GC-FID. Pesticides were susceptible to matrix effects promoted by environmental samples. A decrease in recovery was observed for the pesticide while the complexity of the aqueous matrix tends to increase. The salinity and organic matter appear to be major sources of interference in the method. To the methyl-parathion, the matrix effect was more pronounced for samples with higher salt concentrations. For chlorpyrifos, in medium and high levels, the Rf value for estuarine matrices, marine and weir were statistically similar. For cypermethrin, statistical equality occurred in estuarine headquarters in medium and high levels of concentration. This indicates proportional behavior between the pesticide and the standard surrogate, suggesting that a single value of Rf can be used as a correction factor for any of these matrices used.
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spelling info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisApplication of solid-phase microextraction technique to the determination of pesticides and evaluation of matrix effect on waterAplicaÃÃo da tÃcnica de microextraÃÃo em fase sÃlida na determinaÃÃo de AgrotÃxicos e avaliaÃÃo do efeito matriz em Ãgua2013-03-15Ronaldo Ferreira do Nascimento42824397349 http://lattes.cnpq.br/6345440666273561Rivelino Martins Cavalcante57565147249http://lattes.cnpq.br/2253127527012522Maria das GraÃas Gomes16937538391http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4728686T901007607327http://lattes.cnpq.br/5572912195760218Vitor Paulo Andrade da SilvaUniversidade Federal do CearÃPrograma de PÃs-GraduaÃÃo em QuÃmica UFCBRMatriz ambiental MatÃria orgÃnica SalinidadeEnvironmental matrix Organic matter SalinityQUIMICA ANALITICAThis paper investigates a strategy as a quality control parameter, using standard surrogate and determination of an relation factor (Rf) for determination of pesticides parathion-methyl, chlorpyrifos and cypermethrin in aqueous environmental matrices with different characteristics: river water, estuarine, seawater and weir, using technique SPME-GC-FID. Pesticides were susceptible to matrix effects promoted by environmental samples. A decrease in recovery was observed for the pesticide while the complexity of the aqueous matrix tends to increase. The salinity and organic matter appear to be major sources of interference in the method. To the methyl-parathion, the matrix effect was more pronounced for samples with higher salt concentrations. For chlorpyrifos, in medium and high levels, the Rf value for estuarine matrices, marine and weir were statistically similar. For cypermethrin, statistical equality occurred in estuarine headquarters in medium and high levels of concentration. This indicates proportional behavior between the pesticide and the standard surrogate, suggesting that a single value of Rf can be used as a correction factor for any of these matrices used.Este trabalho investiga uma estratÃgia como parÃmetro de controle de qualidade, usando padrÃo surrogate e determinaÃÃo de um fator de relaÃÃo (Rf) para a determinaÃÃo dos pesticidas metil-paration, clorpirifÃs e cipermetrina em matrizes ambientais aquosas com distintas caracterÃsticas: Ãgua de rio, estuÃrio, marinha e de aÃude; usando a tÃcnica de SPME-GC-FID. Os pesticidas foram suscetÃveis ao efeito matriz promovido pelas amostras ambientais. Observou-se que esse efeito tendeu a aumentar com o aumento da complexidade da matriz. A salinidade e a matÃria orgÃnica parecem ter sido as principais fontes de interferÃncia no mÃtodo. Para o metil-paration, as amostras com maiores teores salinos exerceram efeito matriz mais pronunciado. Para o clorpirifÃs, em nÃveis mÃdio e alto, o valor de Rf para matrizes estuarina, marinha e de aÃude foram estatisticamente similares. Para a cipermetrina, a igualdade estatÃstica ocorreu em matrizes estuarinas em nÃveis mÃdios e altos de concentraÃÃo. Isso indica comportamento proporcional entre o pesticida e o padrÃo surrogate, sugerindo que um Ãnico valor de Rf pode ser usado como fator de correÃÃo para qualquer uma dessas matrizes utilizadas.CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superiorhttp://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16812application/pdfinfo:eu-repo/semantics/openAccessporreponame:Biblioteca Digital de Teses e Dissertações da UFCinstname:Universidade Federal do Cearáinstacron:UFC2019-01-21T11:30:11Zmail@mail.com -
dc.title.en.fl_str_mv Application of solid-phase microextraction technique to the determination of pesticides and evaluation of matrix effect on water
dc.title.alternative.pt.fl_str_mv AplicaÃÃo da tÃcnica de microextraÃÃo em fase sÃlida na determinaÃÃo de AgrotÃxicos e avaliaÃÃo do efeito matriz em Ãgua
title Application of solid-phase microextraction technique to the determination of pesticides and evaluation of matrix effect on water
spellingShingle Application of solid-phase microextraction technique to the determination of pesticides and evaluation of matrix effect on water
Vitor Paulo Andrade da Silva
Matriz ambiental
MatÃria orgÃnica
Salinidade
Environmental matrix
Organic matter
Salinity
QUIMICA ANALITICA
title_short Application of solid-phase microextraction technique to the determination of pesticides and evaluation of matrix effect on water
title_full Application of solid-phase microextraction technique to the determination of pesticides and evaluation of matrix effect on water
title_fullStr Application of solid-phase microextraction technique to the determination of pesticides and evaluation of matrix effect on water
title_full_unstemmed Application of solid-phase microextraction technique to the determination of pesticides and evaluation of matrix effect on water
title_sort Application of solid-phase microextraction technique to the determination of pesticides and evaluation of matrix effect on water
author Vitor Paulo Andrade da Silva
author_facet Vitor Paulo Andrade da Silva
author_role author
dc.contributor.advisor1.fl_str_mv Ronaldo Ferreira do Nascimento
dc.contributor.advisor1ID.fl_str_mv 42824397349
dc.contributor.advisor1Lattes.fl_str_mv http://lattes.cnpq.br/6345440666273561
dc.contributor.referee1.fl_str_mv Rivelino Martins Cavalcante
dc.contributor.referee1ID.fl_str_mv 57565147249
dc.contributor.referee1Lattes.fl_str_mv http://lattes.cnpq.br/2253127527012522
dc.contributor.referee2.fl_str_mv Maria das GraÃas Gomes
dc.contributor.referee2ID.fl_str_mv 16937538391
dc.contributor.referee2Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4728686T9
dc.contributor.authorID.fl_str_mv 01007607327
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/5572912195760218
dc.contributor.author.fl_str_mv Vitor Paulo Andrade da Silva
contributor_str_mv Ronaldo Ferreira do Nascimento
Rivelino Martins Cavalcante
Maria das GraÃas Gomes
dc.subject.por.fl_str_mv Matriz ambiental
MatÃria orgÃnica
Salinidade
topic Matriz ambiental
MatÃria orgÃnica
Salinidade
Environmental matrix
Organic matter
Salinity
QUIMICA ANALITICA
dc.subject.eng.fl_str_mv Environmental matrix
Organic matter
Salinity
dc.subject.cnpq.fl_str_mv QUIMICA ANALITICA
dc.description.sponsorship.fl_txt_mv CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior
dc.description.abstract.por.fl_txt_mv This paper investigates a strategy as a quality control parameter, using standard surrogate and determination of an relation factor (Rf) for determination of pesticides parathion-methyl, chlorpyrifos and cypermethrin in aqueous environmental matrices with different characteristics: river water, estuarine, seawater and weir, using technique SPME-GC-FID. Pesticides were susceptible to matrix effects promoted by environmental samples. A decrease in recovery was observed for the pesticide while the complexity of the aqueous matrix tends to increase. The salinity and organic matter appear to be major sources of interference in the method. To the methyl-parathion, the matrix effect was more pronounced for samples with higher salt concentrations. For chlorpyrifos, in medium and high levels, the Rf value for estuarine matrices, marine and weir were statistically similar. For cypermethrin, statistical equality occurred in estuarine headquarters in medium and high levels of concentration. This indicates proportional behavior between the pesticide and the standard surrogate, suggesting that a single value of Rf can be used as a correction factor for any of these matrices used.
Este trabalho investiga uma estratÃgia como parÃmetro de controle de qualidade, usando padrÃo surrogate e determinaÃÃo de um fator de relaÃÃo (Rf) para a determinaÃÃo dos pesticidas metil-paration, clorpirifÃs e cipermetrina em matrizes ambientais aquosas com distintas caracterÃsticas: Ãgua de rio, estuÃrio, marinha e de aÃude; usando a tÃcnica de SPME-GC-FID. Os pesticidas foram suscetÃveis ao efeito matriz promovido pelas amostras ambientais. Observou-se que esse efeito tendeu a aumentar com o aumento da complexidade da matriz. A salinidade e a matÃria orgÃnica parecem ter sido as principais fontes de interferÃncia no mÃtodo. Para o metil-paration, as amostras com maiores teores salinos exerceram efeito matriz mais pronunciado. Para o clorpirifÃs, em nÃveis mÃdio e alto, o valor de Rf para matrizes estuarina, marinha e de aÃude foram estatisticamente similares. Para a cipermetrina, a igualdade estatÃstica ocorreu em matrizes estuarinas em nÃveis mÃdios e altos de concentraÃÃo. Isso indica comportamento proporcional entre o pesticida e o padrÃo surrogate, sugerindo que um Ãnico valor de Rf pode ser usado como fator de correÃÃo para qualquer uma dessas matrizes utilizadas.
description This paper investigates a strategy as a quality control parameter, using standard surrogate and determination of an relation factor (Rf) for determination of pesticides parathion-methyl, chlorpyrifos and cypermethrin in aqueous environmental matrices with different characteristics: river water, estuarine, seawater and weir, using technique SPME-GC-FID. Pesticides were susceptible to matrix effects promoted by environmental samples. A decrease in recovery was observed for the pesticide while the complexity of the aqueous matrix tends to increase. The salinity and organic matter appear to be major sources of interference in the method. To the methyl-parathion, the matrix effect was more pronounced for samples with higher salt concentrations. For chlorpyrifos, in medium and high levels, the Rf value for estuarine matrices, marine and weir were statistically similar. For cypermethrin, statistical equality occurred in estuarine headquarters in medium and high levels of concentration. This indicates proportional behavior between the pesticide and the standard surrogate, suggesting that a single value of Rf can be used as a correction factor for any of these matrices used.
publishDate 2013
dc.date.issued.fl_str_mv 2013-03-15
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
status_str publishedVersion
format masterThesis
dc.identifier.uri.fl_str_mv http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16812
url http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16812
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal do CearÃ
dc.publisher.program.fl_str_mv Programa de PÃs-GraduaÃÃo em QuÃmica
dc.publisher.initials.fl_str_mv UFC
dc.publisher.country.fl_str_mv BR
publisher.none.fl_str_mv Universidade Federal do CearÃ
dc.source.none.fl_str_mv reponame:Biblioteca Digital de Teses e Dissertações da UFC
instname:Universidade Federal do Ceará
instacron:UFC
reponame_str Biblioteca Digital de Teses e Dissertações da UFC
collection Biblioteca Digital de Teses e Dissertações da UFC
instname_str Universidade Federal do Ceará
instacron_str UFC
institution UFC
repository.name.fl_str_mv -
repository.mail.fl_str_mv mail@mail.com
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