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dc.contributor.authorDomínguez Tello, Antonio
dc.contributor.authorDomínguez Alfaro, Antonio
dc.contributor.authorGómez Ariza, José Luis 
dc.contributor.authorArias Borrego, Ana 
dc.contributor.authorGarcía Barrera, Tamara
dc.identifier.citationDominguez-Tello, A., Dominguez-Alfaro, A., Gómez-Ariza, J. L., Arias-Borrego, A., & García-Barrera, T. (2020). Effervescence-assisted spiral hollow-fibre liquid-phase microextraction of trihalomethanes, halonitromethanes, haloacetonitriles, and haloketones in drinking water. Journal of Hazardous Materials, 397, 122790.
dc.description.abstractA new analytical method was optimized to determine 18 disinfection by-products (DBPs) in drinking water, including four different chemical groups. For this purpose, spiral-shaped hollow-fibre liquid phase microextraction with 1-octanol as the acceptor solvent assisted by effervescence was applied using a homemade supporting device that was specifically designed for this application. The device was printed in a 3D printer and allows for an increased fibre surface even with a low sample volume, which significantly facilitates the extraction. The samples were analysed by gas chromatography coupled to both an electron capture detector and a mass spectrometer for the quantification and unequivocal identification of the analytes, respectively. Effervescence was generated using citric acid and bicarbonate at a molar ratio 1:2, which significantly improves the extraction efficiency and reduces mechanical operations, since stirring and modifiers are not required. The results showed enrichment factors ranging from 13.1 to 140.1. Satisfactory recoveries (80-113 %) were obtained, with relative standard deviations from 3 to 15 % and good linearity. The detection limits (ng L-1) ranged from 10 to 35 (trihalomethanes), 12 to 220 (halonitromethanes), 17 to 79 (haloacetonitriles) and 10 to 16 (haloketones). The applicability of the method was assessed in 6 local water distribution systems.es_ES
dc.description.sponsorshipThe authors acknowledge the plant managers of GIAHSA and their employees for their valuable help in the water collection. This work has been supported by the projects PGC2018-16 096608-B-C21 from the Spanish Ministry of Economy and Competitiveness and Projects UHU 1256905 and P12-FQM-0442 from the Regional Department of Economy, Innovation, Science and Employment (Andalusian Government, Spain). The authors also acknowledge FEDER Funds (European Community), grants numbers UNHU13-1E-1611 and UNHU15-CE-3140.
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.subject.otherDisinfection by-productses_ES
dc.subject.otherSpiral hollow fibrees_ES
dc.subject.otherThree-dimensional printinges_ES
dc.titleEffervescence-assisted spiral hollow-fibre liquid-phase microextraction of trihalomethanes, halonitromethanes, haloacetonitriles, and haloketones in drinking wateres_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/Spanish Ministry of Economy and Competitiveness [PGC2018-096608-B-C21]
dc.subject.unesco23 Químicaes_ES

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Atribución-NoComercial-SinDerivadas 3.0 España
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