Show simple item record

dc.contributor.authorPortolés Nicolau, Tania
dc.contributor.authorMol, Johannes G. J.
dc.contributor.authorSancho Llopis, Juan Vicente
dc.contributor.authorHernández Hernández, Félix
dc.date.accessioned2015-07-07T11:33:22Z
dc.date.available2015-07-07T11:33:22Z
dc.date.issued2014-04
dc.identifier.citationPORTOLÉS, Tania, et al. Use of electron ionization and atmospheric pressure chemical ionization in gas chromatography coupled to time-of-flight mass spectrometry for screening and identification of organic pollutants in waters. Journal of Chromatography A, 2014, 1339: 145-153.ca_CA
dc.identifier.urihttp://hdl.handle.net/10234/126649
dc.description.abstractA new approach has been developed for multiclass screening of organic contaminants in water based on the use of gas chromatography coupled to hybrid quadrupole high-resolution time-of-flight mass spectrometry with atmospheric pressure chemical ionization (GC–(APCI)QTOF MS). The soft ionization promoted by the APCI source allows effective and wide-scope screening based on the investigation of the molecular ion and/or protonated molecule. This is in contrast to electron ionization (EI) where ionization typically results in extensive fragmentation, and diagnostic ions and/or spectra need to be known a priori to facilitate detection of the analytes in the raw data. Around 170 organic contaminants from different chemical families were initially investigated by both approaches, i.e. GC-(EI)TOF and GC-(APCI)QTOF, including polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) and a notable number of pesticides and relevant metabolites. The new GC–(APCI)QTOF MS approach easily allowed widening the number of compounds investigated (85 additional compounds), with more pesticides, personal care products (UV filters, musks), polychloronaphthalenes (PCNs), antimicrobials, insect repellents, etc., most of them considered as emerging contaminants. Both GC-(EI)TOF and GC-(APCI)QTOF methodologies have been applied, evaluating their potential for a wide-scope screening in the environmental field.ca_CA
dc.format.extent8 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherElsevierca_CA
dc.relation.isPartOfJournal of Chromatography A Volume 1339, 25 April 2014ca_CA
dc.rightsCopyright © 2015 Elsevier B.V. or its licensors or contributors.ca_CA
dc.subjectscreeningca_CA
dc.subjectwater samplesca_CA
dc.subjectgas chromatographyca_CA
dc.subjecthybrid quadrupole time-of-flight mass spectrometryca_CA
dc.subjectatmospheric pressure chemical ionizationca_CA
dc.subjectemerging pollutantsca_CA
dc.titleUse of electron ionization and atmospheric pressure chemical ionization in gas chromatography coupled to time-of-flight mass spectrometry for screening and identification of organic pollutants in watersca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttp://dx.doi.org/10.1016/j.chroma.2014.03.001
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_CA
dc.relation.publisherVersionhttp://www.sciencedirect.com/science/article/pii/S0021967314003641ca_CA


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record