@article{10272/23240,
year = {2020},
url = {https://hdl.handle.net/10272/23240},
abstract = {A 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.},
organization = {PGC2018-
16
096608-B-C21 from the Spanish Ministry of Economy 516 and Competitiveness and Projects UHU-
517 1256905 and P12-FQM-0442 from the Regional Department of Economy, Innovation, Science
518 and Employment (Andalusian Government, Spain) and GIAHSA},
publisher = {Elsevier},
title = {Effervescence-assisted spiral hollow-fibre liquid-phase microextraction of trihalomethanes, halonitromethanes, haloacetonitriles, and haloketones in drinking water},
doi = {10.1016/j.jhazmat.2020.122790},
author = {Domínguez Tello, Antonio and Domínguez Alfaro, Antonio and Arias Borrego, Ana and Gómez Ariza, José Luis and García Barrera, Tamara},
}