Determination of nitrated and oxygenated polycyclic aromatic hydrocarbons in water samples by a liquid–liquid phase microextraction procedure based on the solidification of a float...

Autores: Guiñez, María Evangelina; Bazan, Cristian Roberto; Martinez, Luis Dante; Cerutti, Estela Soledad
Año de publicación: 2018
Idioma: inglés
Tipo de recurso: artículo
Estado: versión publicada
Descripción: A methodology was optimized for the determination of nitrated-PAHs (nitro-PAHs) and oxygenated-PAHs (oxy-PAHs) in natural waters. The extraction/preconcentration procedure was performed by liquid–liquid phase microextraction based on the solidification of a floating organic drop followed by a novel solvent assisted back-extraction (DLLME-SFO-SBE) combined with liquid chromatography-tandem mass spectrometry. The solvent assisted back extraction into a suitable solvent enabled the direct injection of nitro and oxy-PAHs into the UHPLC-(+)APCI-MS/MS system. Parameters affecting the efficiency of the back-extraction procedure were evaluated and optimized, including the nature of the back-extractant volume, temperature and agitation effect. Additionally, various strategies related to the emulsion formation process were assayed. Detection and quantification limits were in the range of 0.02–0.85 ng mL−1 and 0.15–1.10 ng mL−1. Acceptable extraction recoveries between 95.1 and 100% and enrichment factors between 192 and 200-fold, with relative standard deviations <7.6%, were obtained. The method was successfully applied to the analysis of different types of water samples. In addition, concentration levels of nitro-PAHs and oxy-PAHs ranging from 0.97 to 7.16 ng mL−1 and from 0.69 to 2.36 ng mL−1; respectively, were detected in lake water. The proposed methodology is an easy, sensitive, and accurate analytical approach for determining nitrated and oxygenated PAHs of environmental concern in water samples.
Fil: Guiñez, María Evangelina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
Fil: Bazan, Cristian Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
Fil: Martinez, Luis Dante. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
Fil: Cerutti, Estela Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina; Argentina
Materia: DLLME-SFO
LIQUID CHROMATOGRAPHY–TANDEM MASS SPECTROMETRY
NITRATED POLYCYCLIC AROMATIC HYDROCARBONS
OXYGENATED POLYCYCLIC AROMATIC HYDROCARBONS
SOLVENT ASSISTED BACK-EXTRACTION
WATER SAMPLES
Nivel de accesibilidad: acceso abierto
Condiciones de uso: https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
Institución: Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador: oai:ri.conicet.gov.ar:11336/87353

Acceder

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repository_id_str	3498
network_name_str	CONICET Digital (CONICET)
spelling	Determination of nitrated and oxygenated polycyclic aromatic hydrocarbons in water samples by a liquid–liquid phase microextraction procedure based on the solidification of a floating organic drop followed by solvent assisted back-extraction and liquid chromatography–tandem mass spectrometryGuiñez, María EvangelinaBazan, Cristian RobertoMartinez, Luis DanteCerutti, Estela SoledadDLLME-SFOLIQUID CHROMATOGRAPHY–TANDEM MASS SPECTROMETRYNITRATED POLYCYCLIC AROMATIC HYDROCARBONSOXYGENATED POLYCYCLIC AROMATIC HYDROCARBONSSOLVENT ASSISTED BACK-EXTRACTIONWATER SAMPLEShttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1A methodology was optimized for the determination of nitrated-PAHs (nitro-PAHs) and oxygenated-PAHs (oxy-PAHs) in natural waters. The extraction/preconcentration procedure was performed by liquid–liquid phase microextraction based on the solidification of a floating organic drop followed by a novel solvent assisted back-extraction (DLLME-SFO-SBE) combined with liquid chromatography-tandem mass spectrometry. The solvent assisted back extraction into a suitable solvent enabled the direct injection of nitro and oxy-PAHs into the UHPLC-(+)APCI-MS/MS system. Parameters affecting the efficiency of the back-extraction procedure were evaluated and optimized, including the nature of the back-extractant volume, temperature and agitation effect. Additionally, various strategies related to the emulsion formation process were assayed. Detection and quantification limits were in the range of 0.02–0.85 ng mL−1 and 0.15–1.10 ng mL−1. Acceptable extraction recoveries between 95.1 and 100% and enrichment factors between 192 and 200-fold, with relative standard deviations <7.6%, were obtained. The method was successfully applied to the analysis of different types of water samples. In addition, concentration levels of nitro-PAHs and oxy-PAHs ranging from 0.97 to 7.16 ng mL−1 and from 0.69 to 2.36 ng mL−1; respectively, were detected in lake water. The proposed methodology is an easy, sensitive, and accurate analytical approach for determining nitrated and oxygenated PAHs of environmental concern in water samples.Fil: Guiñez, María Evangelina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; ArgentinaFil: Bazan, Cristian Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; ArgentinaFil: Martinez, Luis Dante. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; ArgentinaFil: Cerutti, Estela Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina; ArgentinaElsevier Science2018-06-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/87353Guiñez, María Evangelina; Bazan, Cristian Roberto; Martinez, Luis Dante; Cerutti, Estela Soledad; Determination of nitrated and oxygenated polycyclic aromatic hydrocarbons in water samples by a liquid–liquid phase microextraction procedure based on the solidification of a floating organic drop followed by solvent assisted back-extraction and liquid chromatography–tandem mass spectrometry; Elsevier Science; Microchemical Journal; 139; 21-6-2018; 164-1730026-265XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0026265X17308056info:eu-repo/semantics/altIdentifier/doi/10.1016/j.microc.2018.02.027info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-29T12:44:46Zoai:ri.conicet.gov.ar:11336/87353instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-29 12:44:46.267CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv	Determination of nitrated and oxygenated polycyclic aromatic hydrocarbons in water samples by a liquid–liquid phase microextraction procedure based on the solidification of a floating organic drop followed by solvent assisted back-extraction and liquid chromatography–tandem mass spectrometry
title	Determination of nitrated and oxygenated polycyclic aromatic hydrocarbons in water samples by a liquid–liquid phase microextraction procedure based on the solidification of a floating organic drop followed by solvent assisted back-extraction and liquid chromatography–tandem mass spectrometry
spellingShingle	Determination of nitrated and oxygenated polycyclic aromatic hydrocarbons in water samples by a liquid–liquid phase microextraction procedure based on the solidification of a floating organic drop followed by solvent assisted back-extraction and liquid chromatography–tandem mass spectrometry Guiñez, María Evangelina DLLME-SFO LIQUID CHROMATOGRAPHY–TANDEM MASS SPECTROMETRY NITRATED POLYCYCLIC AROMATIC HYDROCARBONS OXYGENATED POLYCYCLIC AROMATIC HYDROCARBONS SOLVENT ASSISTED BACK-EXTRACTION WATER SAMPLES
title_short	Determination of nitrated and oxygenated polycyclic aromatic hydrocarbons in water samples by a liquid–liquid phase microextraction procedure based on the solidification of a floating organic drop followed by solvent assisted back-extraction and liquid chromatography–tandem mass spectrometry
title_full	Determination of nitrated and oxygenated polycyclic aromatic hydrocarbons in water samples by a liquid–liquid phase microextraction procedure based on the solidification of a floating organic drop followed by solvent assisted back-extraction and liquid chromatography–tandem mass spectrometry
title_fullStr	Determination of nitrated and oxygenated polycyclic aromatic hydrocarbons in water samples by a liquid–liquid phase microextraction procedure based on the solidification of a floating organic drop followed by solvent assisted back-extraction and liquid chromatography–tandem mass spectrometry
title_full_unstemmed	Determination of nitrated and oxygenated polycyclic aromatic hydrocarbons in water samples by a liquid–liquid phase microextraction procedure based on the solidification of a floating organic drop followed by solvent assisted back-extraction and liquid chromatography–tandem mass spectrometry
title_sort	Determination of nitrated and oxygenated polycyclic aromatic hydrocarbons in water samples by a liquid–liquid phase microextraction procedure based on the solidification of a floating organic drop followed by solvent assisted back-extraction and liquid chromatography–tandem mass spectrometry
dc.creator.none.fl_str_mv	Guiñez, María Evangelina Bazan, Cristian Roberto Martinez, Luis Dante Cerutti, Estela Soledad
author	Guiñez, María Evangelina
author_facet	Guiñez, María Evangelina Bazan, Cristian Roberto Martinez, Luis Dante Cerutti, Estela Soledad
author_role	author
author2	Bazan, Cristian Roberto Martinez, Luis Dante Cerutti, Estela Soledad
author2_role	author author author
dc.subject.none.fl_str_mv	DLLME-SFO LIQUID CHROMATOGRAPHY–TANDEM MASS SPECTROMETRY NITRATED POLYCYCLIC AROMATIC HYDROCARBONS OXYGENATED POLYCYCLIC AROMATIC HYDROCARBONS SOLVENT ASSISTED BACK-EXTRACTION WATER SAMPLES
topic	DLLME-SFO LIQUID CHROMATOGRAPHY–TANDEM MASS SPECTROMETRY NITRATED POLYCYCLIC AROMATIC HYDROCARBONS OXYGENATED POLYCYCLIC AROMATIC HYDROCARBONS SOLVENT ASSISTED BACK-EXTRACTION WATER SAMPLES
purl_subject.fl_str_mv	https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv	A methodology was optimized for the determination of nitrated-PAHs (nitro-PAHs) and oxygenated-PAHs (oxy-PAHs) in natural waters. The extraction/preconcentration procedure was performed by liquid–liquid phase microextraction based on the solidification of a floating organic drop followed by a novel solvent assisted back-extraction (DLLME-SFO-SBE) combined with liquid chromatography-tandem mass spectrometry. The solvent assisted back extraction into a suitable solvent enabled the direct injection of nitro and oxy-PAHs into the UHPLC-(+)APCI-MS/MS system. Parameters affecting the efficiency of the back-extraction procedure were evaluated and optimized, including the nature of the back-extractant volume, temperature and agitation effect. Additionally, various strategies related to the emulsion formation process were assayed. Detection and quantification limits were in the range of 0.02–0.85 ng mL−1 and 0.15–1.10 ng mL−1. Acceptable extraction recoveries between 95.1 and 100% and enrichment factors between 192 and 200-fold, with relative standard deviations <7.6%, were obtained. The method was successfully applied to the analysis of different types of water samples. In addition, concentration levels of nitro-PAHs and oxy-PAHs ranging from 0.97 to 7.16 ng mL−1 and from 0.69 to 2.36 ng mL−1; respectively, were detected in lake water. The proposed methodology is an easy, sensitive, and accurate analytical approach for determining nitrated and oxygenated PAHs of environmental concern in water samples. Fil: Guiñez, María Evangelina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina Fil: Bazan, Cristian Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina Fil: Martinez, Luis Dante. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina Fil: Cerutti, Estela Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina; Argentina
description	A methodology was optimized for the determination of nitrated-PAHs (nitro-PAHs) and oxygenated-PAHs (oxy-PAHs) in natural waters. The extraction/preconcentration procedure was performed by liquid–liquid phase microextraction based on the solidification of a floating organic drop followed by a novel solvent assisted back-extraction (DLLME-SFO-SBE) combined with liquid chromatography-tandem mass spectrometry. The solvent assisted back extraction into a suitable solvent enabled the direct injection of nitro and oxy-PAHs into the UHPLC-(+)APCI-MS/MS system. Parameters affecting the efficiency of the back-extraction procedure were evaluated and optimized, including the nature of the back-extractant volume, temperature and agitation effect. Additionally, various strategies related to the emulsion formation process were assayed. Detection and quantification limits were in the range of 0.02–0.85 ng mL−1 and 0.15–1.10 ng mL−1. Acceptable extraction recoveries between 95.1 and 100% and enrichment factors between 192 and 200-fold, with relative standard deviations <7.6%, were obtained. The method was successfully applied to the analysis of different types of water samples. In addition, concentration levels of nitro-PAHs and oxy-PAHs ranging from 0.97 to 7.16 ng mL−1 and from 0.69 to 2.36 ng mL−1; respectively, were detected in lake water. The proposed methodology is an easy, sensitive, and accurate analytical approach for determining nitrated and oxygenated PAHs of environmental concern in water samples.
publishDate	2018
dc.date.none.fl_str_mv	2018-06-21
dc.type.none.fl_str_mv	info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo
format	article
status_str	publishedVersion
dc.identifier.none.fl_str_mv	http://hdl.handle.net/11336/87353 Guiñez, María Evangelina; Bazan, Cristian Roberto; Martinez, Luis Dante; Cerutti, Estela Soledad; Determination of nitrated and oxygenated polycyclic aromatic hydrocarbons in water samples by a liquid–liquid phase microextraction procedure based on the solidification of a floating organic drop followed by solvent assisted back-extraction and liquid chromatography–tandem mass spectrometry; Elsevier Science; Microchemical Journal; 139; 21-6-2018; 164-173 0026-265X CONICET Digital CONICET
url	http://hdl.handle.net/11336/87353
identifier_str_mv	Guiñez, María Evangelina; Bazan, Cristian Roberto; Martinez, Luis Dante; Cerutti, Estela Soledad; Determination of nitrated and oxygenated polycyclic aromatic hydrocarbons in water samples by a liquid–liquid phase microextraction procedure based on the solidification of a floating organic drop followed by solvent assisted back-extraction and liquid chromatography–tandem mass spectrometry; Elsevier Science; Microchemical Journal; 139; 21-6-2018; 164-173 0026-265X CONICET Digital CONICET
dc.language.none.fl_str_mv	eng
language	eng
dc.relation.none.fl_str_mv	info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0026265X17308056 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.microc.2018.02.027
dc.rights.none.fl_str_mv	info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv	openAccess
rights_invalid_str_mv	https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv	application/pdf application/pdf application/pdf application/pdf application/pdf
dc.publisher.none.fl_str_mv	Elsevier Science
publisher.none.fl_str_mv	Elsevier Science
dc.source.none.fl_str_mv	reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas
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repository.mail.fl_str_mv	dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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Determination of nitrated and oxygenated polycyclic aromatic hydrocarbons in water samples by a liquid–liquid phase microextraction procedure based on the solidification of a float...

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