EXTRAÇÃO EM FASE SÓLIDA DE RESÍDUOS DE AGROTÓXICOS DE ÁGUA SUPERFICIAL, EMPREGANDO UM SORVENTE DE MENOR RETENÇÃO

Detalhes bibliográficos
Autor(a) principal: Aguiar Júnior,Carlos A. S.
Data de Publicação: 2018
Outros Autores: Silva,Nadja T. M., Soares,Dayane F., Faria,Anizio M.
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422018000600641
Resumo: Solid phase extraction (SPE) is one of the main sample preparation techniques. However, the cost of cartridges and the strong retention of hydrophobic compounds in traditional solid phases are limiting factors for their use. This paper describes the application of lab-made SPE cartridges with low retention material as solid phase, Si(PDAS) - poly(dimethyl-co-alkylmethylsiloxane) thermally immobilized on silica, in the determination of pesticide residues in surface water samples. The extraction method of three pesticides: carbendazim, diurom and methyl parathion in water samples was developed, optimized and validated using Si(PDAS) cartridges and HPLC-UV for quantification. The optimized method required a small organic solvent volume for the elution of pesticides from Si(PDAS), producing a concentration factor of 1000 times and allowing limits of detection like those obtained with hyphenated techniques. The validated method for extraction of pesticides in water samples presented: accuracy, with pesticide recoveries between 70-110%; precision, with RSD < 20%, and; high detectability, resulting in LOQ < 0.4 µg L-1 for all compounds. Si(PDAS) cartridges showed similar efficiency to those commercial C18 for the extraction of pesticides in surface water samples, with additional advantages such as ease, simplicity and low cost of preparation, up to six times cheaper than commercial cartridges.
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spelling EXTRAÇÃO EM FASE SÓLIDA DE RESÍDUOS DE AGROTÓXICOS DE ÁGUA SUPERFICIAL, EMPREGANDO UM SORVENTE DE MENOR RETENÇÃOsolid phase extractionlow retention sorbentsurfacewater, pesticides, HPLC-UV, method validationSolid phase extraction (SPE) is one of the main sample preparation techniques. However, the cost of cartridges and the strong retention of hydrophobic compounds in traditional solid phases are limiting factors for their use. This paper describes the application of lab-made SPE cartridges with low retention material as solid phase, Si(PDAS) - poly(dimethyl-co-alkylmethylsiloxane) thermally immobilized on silica, in the determination of pesticide residues in surface water samples. The extraction method of three pesticides: carbendazim, diurom and methyl parathion in water samples was developed, optimized and validated using Si(PDAS) cartridges and HPLC-UV for quantification. The optimized method required a small organic solvent volume for the elution of pesticides from Si(PDAS), producing a concentration factor of 1000 times and allowing limits of detection like those obtained with hyphenated techniques. The validated method for extraction of pesticides in water samples presented: accuracy, with pesticide recoveries between 70-110%; precision, with RSD < 20%, and; high detectability, resulting in LOQ < 0.4 µg L-1 for all compounds. Si(PDAS) cartridges showed similar efficiency to those commercial C18 for the extraction of pesticides in surface water samples, with additional advantages such as ease, simplicity and low cost of preparation, up to six times cheaper than commercial cartridges.Sociedade Brasileira de Química2018-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422018000600641Química Nova v.41 n.6 2018reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0100-4042.20170223info:eu-repo/semantics/openAccessAguiar Júnior,Carlos A. S.Silva,Nadja T. M.Soares,Dayane F.Faria,Anizio M.por2018-07-05T00:00:00Zoai:scielo:S0100-40422018000600641Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2018-07-05T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv EXTRAÇÃO EM FASE SÓLIDA DE RESÍDUOS DE AGROTÓXICOS DE ÁGUA SUPERFICIAL, EMPREGANDO UM SORVENTE DE MENOR RETENÇÃO
title EXTRAÇÃO EM FASE SÓLIDA DE RESÍDUOS DE AGROTÓXICOS DE ÁGUA SUPERFICIAL, EMPREGANDO UM SORVENTE DE MENOR RETENÇÃO
spellingShingle EXTRAÇÃO EM FASE SÓLIDA DE RESÍDUOS DE AGROTÓXICOS DE ÁGUA SUPERFICIAL, EMPREGANDO UM SORVENTE DE MENOR RETENÇÃO
Aguiar Júnior,Carlos A. S.
solid phase extraction
low retention sorbent
surfacewater, pesticides, HPLC-UV, method validation
title_short EXTRAÇÃO EM FASE SÓLIDA DE RESÍDUOS DE AGROTÓXICOS DE ÁGUA SUPERFICIAL, EMPREGANDO UM SORVENTE DE MENOR RETENÇÃO
title_full EXTRAÇÃO EM FASE SÓLIDA DE RESÍDUOS DE AGROTÓXICOS DE ÁGUA SUPERFICIAL, EMPREGANDO UM SORVENTE DE MENOR RETENÇÃO
title_fullStr EXTRAÇÃO EM FASE SÓLIDA DE RESÍDUOS DE AGROTÓXICOS DE ÁGUA SUPERFICIAL, EMPREGANDO UM SORVENTE DE MENOR RETENÇÃO
title_full_unstemmed EXTRAÇÃO EM FASE SÓLIDA DE RESÍDUOS DE AGROTÓXICOS DE ÁGUA SUPERFICIAL, EMPREGANDO UM SORVENTE DE MENOR RETENÇÃO
title_sort EXTRAÇÃO EM FASE SÓLIDA DE RESÍDUOS DE AGROTÓXICOS DE ÁGUA SUPERFICIAL, EMPREGANDO UM SORVENTE DE MENOR RETENÇÃO
author Aguiar Júnior,Carlos A. S.
author_facet Aguiar Júnior,Carlos A. S.
Silva,Nadja T. M.
Soares,Dayane F.
Faria,Anizio M.
author_role author
author2 Silva,Nadja T. M.
Soares,Dayane F.
Faria,Anizio M.
author2_role author
author
author
dc.contributor.author.fl_str_mv Aguiar Júnior,Carlos A. S.
Silva,Nadja T. M.
Soares,Dayane F.
Faria,Anizio M.
dc.subject.por.fl_str_mv solid phase extraction
low retention sorbent
surfacewater, pesticides, HPLC-UV, method validation
topic solid phase extraction
low retention sorbent
surfacewater, pesticides, HPLC-UV, method validation
description Solid phase extraction (SPE) is one of the main sample preparation techniques. However, the cost of cartridges and the strong retention of hydrophobic compounds in traditional solid phases are limiting factors for their use. This paper describes the application of lab-made SPE cartridges with low retention material as solid phase, Si(PDAS) - poly(dimethyl-co-alkylmethylsiloxane) thermally immobilized on silica, in the determination of pesticide residues in surface water samples. The extraction method of three pesticides: carbendazim, diurom and methyl parathion in water samples was developed, optimized and validated using Si(PDAS) cartridges and HPLC-UV for quantification. The optimized method required a small organic solvent volume for the elution of pesticides from Si(PDAS), producing a concentration factor of 1000 times and allowing limits of detection like those obtained with hyphenated techniques. The validated method for extraction of pesticides in water samples presented: accuracy, with pesticide recoveries between 70-110%; precision, with RSD < 20%, and; high detectability, resulting in LOQ < 0.4 µg L-1 for all compounds. Si(PDAS) cartridges showed similar efficiency to those commercial C18 for the extraction of pesticides in surface water samples, with additional advantages such as ease, simplicity and low cost of preparation, up to six times cheaper than commercial cartridges.
publishDate 2018
dc.date.none.fl_str_mv 2018-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422018000600641
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422018000600641
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.21577/0100-4042.20170223
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.41 n.6 2018
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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