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dc.contributor.authorDomínguez Tello, Antonio
dc.contributor.authorArias Borrego, Ana 
dc.contributor.authorGarcía Barrera, Tamara 
dc.contributor.authorGómez Ariza, José Luis 
dc.date.accessioned2016-11-17T10:51:53Z
dc.date.available2016-11-17T10:51:53Z
dc.date.issued2015
dc.identifier.citationDomínguez Tello, A. ,Arias Borrego, A., García Barrera, T., Gómez Ariza, J.L.: "Application of hollow fiber liquid phase microextraction for simultaneous determination of regulated and emerging iodinated trihalomethanes in drinking water". Journal of Chromatography A. Vol. 1402, págs. 8–16, (2015). DOI: 10.1016/j.chroma.2015.05.020en_US
dc.identifier.issn0021-9673
dc.identifier.issn1873-3778 (electrónico)
dc.identifier.urihttp://hdl.handle.net/10272/12842
dc.description.abstractTrihalomethanes (THMs) are regulated disinfection by-products (DBPs) most commonly analyzed in quality control water supply due to their harmful effects on health. However, few data exist about the content of emerging iodo-trihalomethanes (I-THMs) which are present in drinking water at very low concentrations (in the order of ng L−1). For this reason a two-phase hollow fiber liquid phase microextraction method for the simultaneous determination of four regulated trihalomethanes and six emerging iodo-trihalomethanes using GC-μECD and GC–MS with detection limits in the range of few ng L−1 has been developed. A central composite design was used to optimize conditions for simultaneous extraction. The best extraction recovery was obtained with 19.2 min at 27.1 °C and 900 rpm, without salt addition, using a supported hollow fiber membrane of 10.5 cm (0.6 mm id) and 1-octanol as acceptor phase. The limits of detection for the regulated THMs and I-THMs were 3–44 ng L−1 and 1–3 ng L−1, respectively. The calibration curves showed good linearity (R2 > 0.995) and good repeatibility (3–22%). The relative recoveries in water were between 96.5% and 105.2%. The method was applied for the simultaneous determination of trihalomethanes in supply water samples from seven water distribution systems (WDS) in the Huelva area, located at the southwest Spain, which use different water-treatment processes. The highest concentrations of I-THMs, particularly CHBrClI and CHCl2I, were detected in water treated with advanced treatment process using pre-ozonation, however these compounds were not detected or decreased along distribution system. In the samples of treated water with conventional treatment, using pre-oxidation by permanganate and distribution network, CHCl2I, CHBrClI, CHClI2, CHBrI2 and CHI3 were detected at very low concentrations (1–18 ng L−1). Finally, in water samples from underground origin without oxidation treatment, in which only disinfection with sodium hypochlorite was applied, I-THMs were not detected.en_US
dc.description.sponsorshipThe authors wish to express their appreciation to the plant managers GIAHSA and employees for their help and cooperation in facilitating the collection of water samples during this study. This work was supported by the project CTM2012-38720-C03- 01 from the Spanish Ministry of Economy and Competitiveness (MINECO), and by project P012-FQM-0442 from the Regional Min- istry of Economy, Innovation, Science and Employment (Andalusian Government, Spain)en_US
dc.description.sponsorshipThe authors wish to express their appreciation to the plant managers GIAHSA and employees for their help and cooperation in facilitating the collection of water samples during this study. This work was supported by the project CTM2012-38720-C03-01 from the Spanish Ministry of Economy and Competitiveness (MINECO), and by project P012-FQM-0442 from the Regional Ministry of Economy, Innovation, Science and Employment (Andalusian Government, Spain).
dc.language.isoengen_US
dc.publisherJournal of Chromatography Aen_US
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.otherLodo-trihalomethanesen_US
dc.subject.otherHollow fiber membraneen_US
dc.subject.otherGas chromatographyen_US
dc.subject.otherDisinfection by-products; Drinking wateren_US
dc.titleApplication of hollow fiber liquid phase microextraction for simultaneous determination of regulated and emerging iodinated trihalomethanes in drinking wateren_US
dc.typeinfo:eu-repo/semantics/articleen_US
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.chroma.2015.05.020en_US
dc.identifier.doi10.1016/j.chroma.2015.05.020
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/Spanish Ministry of Economy and Competitiveness (MINECO) [CTM2012-38720-C03-01]
dc.relation.projectIDinfo:eu-repo/grantAgreement/Regional Ministry of Economy, Innovation, Science and Employment (Andalusian Government, Spain) [P012-FQM-0442]


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