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dc.contributor.author
Critto, Emilia Frickel
dc.contributor.author
Medina, Giselle Soledad
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dc.contributor.author
Reta, Mario Roberto
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dc.contributor.author
Acquaviva, Agustín
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dc.date.available
2023-10-03T12:49:15Z
dc.date.issued
2022-08
dc.identifier.citation
Critto, Emilia Frickel; Medina, Giselle Soledad; Reta, Mario Roberto; Acquaviva, Agustín; Determination of polycyclic aromatic hydrocarbons in surface waters by high performance liquid chromatography previous to preconcentration through solid-phase extraction by using polymeric monoliths; Elsevier Science; Journal of Chromatography - A; 1679; 8-2022; 1-9
dc.identifier.issn
0021-9673
dc.identifier.uri
http://hdl.handle.net/11336/213899
dc.description.abstract
A simple, sensitive and reproducible solid-phase extraction method using plastic cartridges containing a monolithic sorbent (m-SPE), coupled to reverse phase liquid chromatography analysis, aiming to determine fifteen polycyclic aromatic hydrocarbons in surface water samples, was developed. The sorbent was easily prepared through a thermal polymerization reaction by using a mixture of n-butyl methacrylate as non-polar monomer and ethylene glycol dimethacrylate as crosslinker contained in a typical Polypropylene syringe cartridge. The effect of different parameters (type of hydrophobic monomer, elution solvent, sample volume, sorbent amount and sorbent load capacity) on the extraction efficiency was optimized. The optimal conditions were achieved by using n-butyl methacrylate as monomer, tetrahydrofurane (THF) as solvent for sorbent cleaning, THF:acetone (1:1) as elution solvent, 25.00 mL of sample volume, 600 µL of the polymerization mixture and 60 µg L−1 as sample loading capacity. Finally, the sorbent charge capacity, the reusability of the cartridges and the extraction efficiency of the m-SPE monolith, as compared with a typical C8 cartridge, were evaluated. Under the optimized experimental conditions, enrichment factors were between 76 and 103, relative recovery factors from 78 to 103%, accuracy values in the range of 58 to 98%, and inter-batch reproducibility values from between 2 and 10%, were obtained. The limits of detection and quantification were obtained by two different procedures: the signal to noise (S/N) ratios (3 and 10, respectively) and the IUPAC convention. The lowest LOD and LOQ values, obtained with the S/N ratios, were between 0.02 and 1.00 µg L−1, respectively whereas with the IUPAC convention the values were between 0.07 and 5 µg L−1. Using this procedure, several PAHs could be detected in the surface water sample taken from a river stream located in La Plata city (Buenos Aires Province, Argentina).
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
HIGH PERFORMANCE LIQUID CHROMATOGRAPHY-FLUORESCENCE DETECTION
dc.subject
M-SPE
dc.subject
ORGANIC POLYMER MONOLITHS
dc.subject
POLYCYCLIC AROMATIC HYDROCARBONS
dc.subject
SURFACE WATER SAMPLES
dc.subject.classification
Química Analítica
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dc.subject.classification
Ciencias Químicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Determination of polycyclic aromatic hydrocarbons in surface waters by high performance liquid chromatography previous to preconcentration through solid-phase extraction by using polymeric monoliths
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-10-03T10:22:56Z
dc.journal.volume
1679
dc.journal.pagination
1-9
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Critto, Emilia Frickel. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Laboratorio de Investigación y Desarrollo de Métodos Analíticos. - Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Laboratorio de Investigación y Desarrollo de Métodos Analíticos; Argentina
dc.description.fil
Fil: Medina, Giselle Soledad. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Laboratorio de Investigación y Desarrollo de Métodos Analíticos. - Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Laboratorio de Investigación y Desarrollo de Métodos Analíticos; Argentina
dc.description.fil
Fil: Reta, Mario Roberto. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Laboratorio de Investigación y Desarrollo de Métodos Analíticos. - Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Laboratorio de Investigación y Desarrollo de Métodos Analíticos; Argentina
dc.description.fil
Fil: Acquaviva, Agustín. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Laboratorio de Investigación y Desarrollo de Métodos Analíticos. - Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Laboratorio de Investigación y Desarrollo de Métodos Analíticos; Argentina
dc.journal.title
Journal of Chromatography - A
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.chroma.2022.463397
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