Analysis of pesticides in soy milk combining solid-phase extraction and capillary electrophoresis-mass spectrometry

In this work, the determination of a group of triazolopyrimidine sulfoanilide herbicides (cloransulam-methyl, metosulam, flumetsulam, florasulam and diclosulam) in soy milk by capillary electrophoresis-mass spectrometry (CE-MS) is presented. The main electrospray interface (ESI) parameters (nebulize...

Descripción completa

Detalles Bibliográficos
Autores: Hernández-Borges, Javier, Rodríguez Delgado, Miguel A., García-Montelongo, Francisco J., Cifuentes, Alejandro
Tipo de recurso: artículo
Fecha de publicación:2005
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/12167
Acceso en línea:http://hdl.handle.net/10261/12167
Access Level:acceso abierto
Palabra clave:Capillary electrophoresis
mass spectrometry
CE-MS
triazolopyrimidine sulfoanilide herbicides
Experimental design
Pesticides
Solid phase extraction
id ES_64d6445b5612a07100ae69cdcf69dfed
oai_identifier_str oai:digital.csic.es:10261/12167
network_acronym_str ES
network_name_str España
repository_id_str
spelling Analysis of pesticides in soy milk combining solid-phase extraction and capillary electrophoresis-mass spectrometryHernández-Borges, JavierRodríguez Delgado, Miguel A.García-Montelongo, Francisco J.Cifuentes, AlejandroCapillary electrophoresismass spectrometryCE-MStriazolopyrimidine sulfoanilide herbicidesExperimental designPesticidesSolid phase extractionIn this work, the determination of a group of triazolopyrimidine sulfoanilide herbicides (cloransulam-methyl, metosulam, flumetsulam, florasulam and diclosulam) in soy milk by capillary electrophoresis-mass spectrometry (CE-MS) is presented. The main electrospray interface (ESI) parameters (nebulizer pressure, dry gas flow rate, dry gas temperature and composition of the sheath liquid) are optimized using a central composite design. To increase the sensitivity of the CE-MS method, an off-line sample preconcentration procedure based on solid-phase extraction (SPE) is combined with an on-line stacking procedure (i.e. normal stacking mode, NSM). Samples could be injected up to 100 seconds, providing limits of detection (LODs) down to 74 μg/L, i.e., in the low ppb level, with relative standard deviation values (RSD, %) between 3.8% and 6.4% for peak areas for the same day, and between 6.5% and 8.1% for three different days. The usefulness of the optimized SPE-NSM-CE-MS procedure is demonstrated through the sensitive quantification of the selected pesticides in soy milk samples.J. Hernández-Borges thanks to the Ministerio de Educación y Ciencia de España for a FPU grant. This work has been supported by Consejería de Educación, Cultura y Deportes, Gobierno Autónomo de Canarias (Project 2002/074).Peer reviewedWiley-VCHConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]200920092005info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501271161 bytesapplication/pdfhttp://hdl.handle.net/10261/12167reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1002/jssc.200500014Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/121672026-05-22T06:33:51Z
dc.title.none.fl_str_mv Analysis of pesticides in soy milk combining solid-phase extraction and capillary electrophoresis-mass spectrometry
title Analysis of pesticides in soy milk combining solid-phase extraction and capillary electrophoresis-mass spectrometry
spellingShingle Analysis of pesticides in soy milk combining solid-phase extraction and capillary electrophoresis-mass spectrometry
Hernández-Borges, Javier
Capillary electrophoresis
mass spectrometry
CE-MS
triazolopyrimidine sulfoanilide herbicides
Experimental design
Pesticides
Solid phase extraction
title_short Analysis of pesticides in soy milk combining solid-phase extraction and capillary electrophoresis-mass spectrometry
title_full Analysis of pesticides in soy milk combining solid-phase extraction and capillary electrophoresis-mass spectrometry
title_fullStr Analysis of pesticides in soy milk combining solid-phase extraction and capillary electrophoresis-mass spectrometry
title_full_unstemmed Analysis of pesticides in soy milk combining solid-phase extraction and capillary electrophoresis-mass spectrometry
title_sort Analysis of pesticides in soy milk combining solid-phase extraction and capillary electrophoresis-mass spectrometry
dc.creator.none.fl_str_mv Hernández-Borges, Javier
Rodríguez Delgado, Miguel A.
García-Montelongo, Francisco J.
Cifuentes, Alejandro
author Hernández-Borges, Javier
author_facet Hernández-Borges, Javier
Rodríguez Delgado, Miguel A.
García-Montelongo, Francisco J.
Cifuentes, Alejandro
author_role author
author2 Rodríguez Delgado, Miguel A.
García-Montelongo, Francisco J.
Cifuentes, Alejandro
author2_role author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Capillary electrophoresis
mass spectrometry
CE-MS
triazolopyrimidine sulfoanilide herbicides
Experimental design
Pesticides
Solid phase extraction
topic Capillary electrophoresis
mass spectrometry
CE-MS
triazolopyrimidine sulfoanilide herbicides
Experimental design
Pesticides
Solid phase extraction
description In this work, the determination of a group of triazolopyrimidine sulfoanilide herbicides (cloransulam-methyl, metosulam, flumetsulam, florasulam and diclosulam) in soy milk by capillary electrophoresis-mass spectrometry (CE-MS) is presented. The main electrospray interface (ESI) parameters (nebulizer pressure, dry gas flow rate, dry gas temperature and composition of the sheath liquid) are optimized using a central composite design. To increase the sensitivity of the CE-MS method, an off-line sample preconcentration procedure based on solid-phase extraction (SPE) is combined with an on-line stacking procedure (i.e. normal stacking mode, NSM). Samples could be injected up to 100 seconds, providing limits of detection (LODs) down to 74 μg/L, i.e., in the low ppb level, with relative standard deviation values (RSD, %) between 3.8% and 6.4% for peak areas for the same day, and between 6.5% and 8.1% for three different days. The usefulness of the optimized SPE-NSM-CE-MS procedure is demonstrated through the sensitive quantification of the selected pesticides in soy milk samples.
publishDate 2005
dc.date.none.fl_str_mv 2005
2009
2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/12167
url http://hdl.handle.net/10261/12167
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1002/jssc.200500014
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 271161 bytes
application/pdf
dc.publisher.none.fl_str_mv Wiley-VCH
publisher.none.fl_str_mv Wiley-VCH
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869409686676045824
score 15,81155

Similares en LA Referencia