2026-04-28T17:55:12Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/53262022-04-07T10:38:31Zcom_10259_4244com_10259_5086com_10259_2604col_10259_4245

00925njm 22002777a 4500 dc García Solaesa, Ángela author Fernandes, José O. author Sanz Díez, Mª Teresa author Benito Román, Oscar author Cunha, Sara C. author 2019-04 A "green", simple, and low-cost sample extraction procedure involving the use of a deep eutectic solvent (DES) in a vortex assisted liquid-liquid microextraction (VALLME) technique followed by gas chromatography-tandem mass spectrometry (GC-MS/MS) analysis was developed for the simultaneous determination of different PBDEs congeners and OCPs residues in fish oils. After evaluation of different eutectic mixtures, the extraction parameters (volume of DES, amount of oil sample and extraction time) were optimized by means of experimental design in order to maximise extraction efficiency. The developed method was validated in terms of linearity, accuracy and precision, presenting limits of detection in the low ng g−1 level. Its application in the analysis of five fish oil samples, allowed the detection of all the target analytes at levels up 21.5 ng g−1. Fish oils used in animal feed showed to be more contaminated than fish oils for human consumption. 0039-9140 http://hdl.handle.net/10259/5326 10.1016/j.talanta.2018.11.048 Choline chloride:phenol Deep eutectic solvents GC-MS/MS PBDEs OCPs Food contaminants Green determination of brominated flame retardants and organochloride pollutants in fish oils by vortex assisted liquid-liquid microextraction and gas chromatography-tandem mass spectrometry