Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/55632
COMPARTIR / EXPORTAR:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE

Invitar a revisión por pares abierta
Título

Evaluation of comprehensive two-dimensional gas chromatography–time-of-flight-mass spectrometry for the analysis of polycyclic aromatic hydrocarbons in sediments

AutorPena-Abaurrea, Miren CSIC; Ye, F.; Blasco, Julián CSIC ORCID ; Ramos, Lourdes CSIC ORCID
Palabras claveGC x GC-ToF MS
PAHs
Sediment analysis
Fecha de publicación21-sep-2012
EditorElsevier
CitaciónJournal of Chromatography A 1256: 222-231 (2012)
ResumenThis study evaluates the feasibility of comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC × GC–ToF MS) for the determination of the 15 + 1 EU PAHs in sediments. Experimental variables affecting the injection, chromatographic separation and analytical detection of the analytes have systematically been optimised. Under finally proposed conditions, a satisfactory resolution among critical pairs/groups of PAHs, including benz[a]anthracene, cyclopenta[cd]pyrene and chrysene, the three benzofluoranthene isomers, indeno[1,2,3-cd]pyrene from dibenz[a,h]anthracene (DahA), and DahA from dibenz[a,c]anthracene, has been achieved using DB-5 × BPX-50 as column combination with a run time of 1 h. The feasibility of the method for the analysis of real-life samples has been demonstrated by accurate determination of relevant target PAHs in the certified harbour sediment BCR-535 (deviations among certified concentration values and those calculated using the proposed method lower than 3%); and by successful application to sediments sampled from a relevant protected area located in the South of Spain. The low methodological limits of detection (LODs) obtained for most of the targeted PAHs (in the 5.7–60 μg/kg range, as calculated for real samples) guarantied accurate quantification of the target compounds at the low levels expected in these types of pristine matrices. The strong retention experienced by the heaviest dibenzopyrene isomers included in the study resulted in relatively high LODs for these analytes; nevertheless, these compounds were detected at concentration levels above the corresponding LOD in some of the analysed sediments. In addition, the enhanced identification power provided by GC × GC–ToF MS for the identification of non-target analytes allowed the tentative identification of a group of polynuclear aromatic thiophenes in some of the test samples. Finally, the potential of the use of normalised bubble plots for the fast screening of the potential PAH sources has been demonstrated.
Versión del editorhttp://dx.doi.org/10.1016/j.chroma.2012.07.060
URIhttp://hdl.handle.net/10261/55632
DOI10.1016/j.chroma.2012.07.060
ISSN0021-9673
Aparece en las colecciones: (IQOG) Artículos
(ICMAN) Artículos

Mostrar el registro completo

CORE Recommender

PubMed Central
Citations

3
checked on 26-mar-2024

SCOPUSTM   
Citations

19
checked on 22-mar-2024

WEB OF SCIENCETM
Citations

17
checked on 25-feb-2024

Page view(s)

332
checked on 29-mar-2024

Google ScholarTM

Check

Altmetric

Altmetric


Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.