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dc.contributor.author
Guiñez, María Evangelina
dc.contributor.author
Canales, Maria Romina
dc.contributor.author
Martinez, Luis Dante
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Cerutti, Estela Soledad
dc.date.available
2020-01-13T19:13:21Z
dc.date.issued
2018-02
dc.identifier.citation
Guiñez, María Evangelina; Canales, Maria Romina; Martinez, Luis Dante; Cerutti, Estela Soledad; Solvent-based de-emulsification dispersive liquid-liquid microextraction coupled with UPLC-MS/MS for the fast determination of ultratrace levels of nitrated and oxygenated polycyclic aromatic hydrocarbons in environmental samples; Royal Society of Chemistry; Analytical Methods; 10; 8; 2-2018; 910-919
dc.identifier.issn
1759-9660
dc.identifier.uri
http://hdl.handle.net/11336/94542
dc.description.abstract
In this study, a new solvent-based de-emulsification dispersive liquid-liquid microextraction strategy followed by liquid chromatography-atmospheric pressure chemical ionization-tandem mass spectrometry has been developed for the determination of the ultratrace levels of nitrated and oxygenated polycyclic aromatic hydrocarbons present in environmental samples. Various parameters affecting the extraction efficiency such as type and volume of the extraction, dispersive and de-emulsifier solvents, temperature, salt addition, extraction time and sample volume were evaluated. Under optimal conditions, calibration plots were linear in the ranges between 0.005 ng mL-1 and 100 ng mL-1, with correlation coefficients (r2) better than 0.995. In addition, satisfactory extraction recoveries ranging from 95.1% to 98.5% were obtained. The proposed method has been found to have excellent detection sensitivity with limits of detection (LODs, S/N = 3) of 8.9-89.0 ng L-1 and precisions of 1.4-8.7% (RSDs, n = 5). Enrichment factors of the four target compounds were from 191-folds to 200-folds. The proposed method may be advised as an economical, fast easy, sensitive, accurate approach, even better than conventional DLLME and similar techniques. The results indicated that this methodology was suitable for the analysis of ultratraces of nitrated and oxygenated PAHs in water samples.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Royal Society of Chemistry
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Derivados de PAHs
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Dispersive liquid-liquid microextraction
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Environmental samples
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UHPLC-MS/MS
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Química Analítica
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Ciencias Químicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Solvent-based de-emulsification dispersive liquid-liquid microextraction coupled with UPLC-MS/MS for the fast determination of ultratrace levels of nitrated and oxygenated polycyclic aromatic hydrocarbons in environmental samples
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-10-21T19:48:43Z
dc.identifier.eissn
1759-9679
dc.journal.volume
10
dc.journal.number
8
dc.journal.pagination
910-919
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
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. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Química. Área de Química Analítica; Argentina
dc.description.fil
Fil: Canales, Maria Romina. 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. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Química. Área de Química Analítica; Argentina
dc.description.fil
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. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Química. Área de Química Analítica; Argentina
dc.description.fil
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. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Química. Área de Química Analítica; Argentina
dc.journal.title
Analytical Methods
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://xlink.rsc.org/?DOI=C8AY00021B
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1039/C8AY00021B
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