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dc.contributor.authorPortolés Nicolau, Tania
dc.contributor.authorSales Martínez, Carlos
dc.contributor.authorÁbalos, Manuela
dc.contributor.authorSauló, Jordi
dc.contributor.authorAbad, Esteban
dc.identifier.citationT. Portolés, C. Sales, M. Abalos, J. Sauló, E. Abad, Evaluation of the capabilities of atmospheric pressure chemical ionization source coupled to tandem mass spectrometry for the determination of dioxin-like polychlorobiphenyls in complex-matrix food samples, Analytica Chimica Acta, Volume 937, 21 September 2016, Pages 96-105ca_CA
dc.description.abstractThe use of the novel atmospheric pressure chemical ionization (APCI) source for gas chromatography (GC) coupled to triple quadrupole using tandem mass spectrometry (MS/MS) and its potential for the simultaneous determination of the 12 dioxin-like polychlorobiphenyls (DL-PCBs) in complex food and feed matrices has been evaluated. In first place, ionization and fragmentation behavior of DL-PCBs on the APCI source under charge transfer conditions has been studied followed by their fragmentation in the collision cell. Linearity, repeatability and sensitivity have been studied obtaining instrumental limits of detection and quantification of 0.0025 and 0.005 pg µL-1 (2.5 and 5 fg on column) respectively for every DL-PCB. Finally, application to real samples has been carried out and DL-PCB congeners (PCB 77, 81, 105, 114, 118, 123, 126, 156, 157, 167, 169, 189) have been detected in the different samples in the range of 0.40 to 10000 pg g-1. GC-(APCI)MS/MS has been proved as a suitable alternative to the traditionally accepted confirmation method based on the use of high resolution mass spectrometry and other triple quadrupole tandem mass spectrometry techniques operating with electron ionization. The development of MS/MS methodologies for the analysis of dioxins and DL-PCBs is nowadays particularly important, since this technique was included as a confirmatory method in the present European Union regulations that establish the requirements for the determination of these compounds in food and feed matrices.ca_CA
dc.description.sponsorShipThe authors acknowledge the financial support of Generalitat Valenciana, (research group of excellence PROMETEO/2009/054 and PROMETEO II 2014/023 and Collaborative Research on Environment and Food-Safety (ISIC/2012/016))ca_CA
dc.format.extent25 p.ca_CA
dc.relation.isPartOfAnalytica Chimica Acta, v. 937, 21 September 2016, p. 96-105ca_CA
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.subjectDioxin-like polychlorinated biphenylsca_CA
dc.subjectpersistent organic pollutantsca_CA
dc.subjectatmospheric pressure chemical ionizationca_CA
dc.subjectfood and feed samplesca_CA
dc.titleEvaluation of the capabilities of atmospheric pressure chemical ionization source coupled to tandem mass spectrometry for the determination of dioxin-like polychlorobiphenyls in complex-matrix food samplesca_CA

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