Determination of carbamate and urea pesticide residues in fresh vegetables using microwave-assisted extraction and liquid chromatography

Detalhes bibliográficos
Autor(a) principal: Paíga, Paula
Data de Publicação: 2009
Outros Autores: Morais, Simone, Correia, Manuela, Delerue-Matos, Cristina, Alves, Arminda
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.22/2959
Resumo: An analytical multiresidue method for the simultaneous determination of seven pesticides in fresh vegetable samples, namely, courgette (Cucurbita pepo), cucumber (Cucumis sativus), lettuce (Lactuca sativa, Romaine and Iceberg varieties) and peppers (Capsicum sp.) is described. The procedure, based on microwave-assisted extraction (MAE) and analysis by liquid chromatography– photodiode array (LC–PDA) detection was applied to four carbamates (carbofuran, carbaryl, chlorpropham and EPTC) and three urea pesticides (monolinuron, metobromuron and linuron). Extraction solvent and the addition of anhydrous sodium sulphate to fresh vegetable homogenate before MAE were the parameters optimised for each commodity. Recovery studies were performed using spiked samples in the range 250–403 µgkg- 1 in each pesticide. The pesticide residues were extracted using 20mL acetonitrile at 60 ºC, for 10 min. Acceptable recoveries and RSDs were attained (overall average recovery of 77.2% and RSDs are lower than 11%). Detection limits ranged between 5.8 µgkg- 1 for carbaryl to 12.3 µgkg- 1 for carbofuran. The analytical protocol was applied for quality control of 41 fresh vegetable samples bought in Oporto Metropolitan Area (North Portugal). None of the samples contained any detectable amounts of the studied compounds.
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spelling Determination of carbamate and urea pesticide residues in fresh vegetables using microwave-assisted extraction and liquid chromatographyPesticidesCarbamatesUreasMicrowave-assisted extractionLiquid chromatographyliquid chromatographyVegetablesAn analytical multiresidue method for the simultaneous determination of seven pesticides in fresh vegetable samples, namely, courgette (Cucurbita pepo), cucumber (Cucumis sativus), lettuce (Lactuca sativa, Romaine and Iceberg varieties) and peppers (Capsicum sp.) is described. The procedure, based on microwave-assisted extraction (MAE) and analysis by liquid chromatography– photodiode array (LC–PDA) detection was applied to four carbamates (carbofuran, carbaryl, chlorpropham and EPTC) and three urea pesticides (monolinuron, metobromuron and linuron). Extraction solvent and the addition of anhydrous sodium sulphate to fresh vegetable homogenate before MAE were the parameters optimised for each commodity. Recovery studies were performed using spiked samples in the range 250–403 µgkg- 1 in each pesticide. The pesticide residues were extracted using 20mL acetonitrile at 60 ºC, for 10 min. Acceptable recoveries and RSDs were attained (overall average recovery of 77.2% and RSDs are lower than 11%). Detection limits ranged between 5.8 µgkg- 1 for carbaryl to 12.3 µgkg- 1 for carbofuran. The analytical protocol was applied for quality control of 41 fresh vegetable samples bought in Oporto Metropolitan Area (North Portugal). None of the samples contained any detectable amounts of the studied compounds.Taylor & FrancisRepositório Científico do Instituto Politécnico do PortoPaíga, PaulaMorais, SimoneCorreia, ManuelaDelerue-Matos, CristinaAlves, Arminda2013-11-26T15:49:54Z20092009-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.22/2959eng0306–731910.1080/03067310802526993info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-13T12:42:35Zoai:recipp.ipp.pt:10400.22/2959Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:23:58.893945Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Determination of carbamate and urea pesticide residues in fresh vegetables using microwave-assisted extraction and liquid chromatography
title Determination of carbamate and urea pesticide residues in fresh vegetables using microwave-assisted extraction and liquid chromatography
spellingShingle Determination of carbamate and urea pesticide residues in fresh vegetables using microwave-assisted extraction and liquid chromatography
Paíga, Paula
Pesticides
Carbamates
Ureas
Microwave-assisted extraction
Liquid chromatographyliquid chromatography
Vegetables
title_short Determination of carbamate and urea pesticide residues in fresh vegetables using microwave-assisted extraction and liquid chromatography
title_full Determination of carbamate and urea pesticide residues in fresh vegetables using microwave-assisted extraction and liquid chromatography
title_fullStr Determination of carbamate and urea pesticide residues in fresh vegetables using microwave-assisted extraction and liquid chromatography
title_full_unstemmed Determination of carbamate and urea pesticide residues in fresh vegetables using microwave-assisted extraction and liquid chromatography
title_sort Determination of carbamate and urea pesticide residues in fresh vegetables using microwave-assisted extraction and liquid chromatography
author Paíga, Paula
author_facet Paíga, Paula
Morais, Simone
Correia, Manuela
Delerue-Matos, Cristina
Alves, Arminda
author_role author
author2 Morais, Simone
Correia, Manuela
Delerue-Matos, Cristina
Alves, Arminda
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Politécnico do Porto
dc.contributor.author.fl_str_mv Paíga, Paula
Morais, Simone
Correia, Manuela
Delerue-Matos, Cristina
Alves, Arminda
dc.subject.por.fl_str_mv Pesticides
Carbamates
Ureas
Microwave-assisted extraction
Liquid chromatographyliquid chromatography
Vegetables
topic Pesticides
Carbamates
Ureas
Microwave-assisted extraction
Liquid chromatographyliquid chromatography
Vegetables
description An analytical multiresidue method for the simultaneous determination of seven pesticides in fresh vegetable samples, namely, courgette (Cucurbita pepo), cucumber (Cucumis sativus), lettuce (Lactuca sativa, Romaine and Iceberg varieties) and peppers (Capsicum sp.) is described. The procedure, based on microwave-assisted extraction (MAE) and analysis by liquid chromatography– photodiode array (LC–PDA) detection was applied to four carbamates (carbofuran, carbaryl, chlorpropham and EPTC) and three urea pesticides (monolinuron, metobromuron and linuron). Extraction solvent and the addition of anhydrous sodium sulphate to fresh vegetable homogenate before MAE were the parameters optimised for each commodity. Recovery studies were performed using spiked samples in the range 250–403 µgkg- 1 in each pesticide. The pesticide residues were extracted using 20mL acetonitrile at 60 ºC, for 10 min. Acceptable recoveries and RSDs were attained (overall average recovery of 77.2% and RSDs are lower than 11%). Detection limits ranged between 5.8 µgkg- 1 for carbaryl to 12.3 µgkg- 1 for carbofuran. The analytical protocol was applied for quality control of 41 fresh vegetable samples bought in Oporto Metropolitan Area (North Portugal). None of the samples contained any detectable amounts of the studied compounds.
publishDate 2009
dc.date.none.fl_str_mv 2009
2009-01-01T00:00:00Z
2013-11-26T15:49:54Z
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://hdl.handle.net/10400.22/2959
url http://hdl.handle.net/10400.22/2959
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0306–7319
10.1080/03067310802526993
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 Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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