2026-04-28T19:11:44Zhttps://riubu.ubu.es/oai/request

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

2020-06-05T10:45:55Z urn:hdl:10259/5326 Green determination of brominated flame retardants and organochloride pollutants in fish oils by vortex assisted liquid-liquid microextraction and gas chromatography-tandem mass spectrometry García Solaesa, Ángela Fernandes, José O. Sanz Díez, Mª Teresa Benito Román, Oscar Cunha, Sara C. Choline chloride:phenol Deep eutectic solvents GC-MS/MS PBDEs OCPs Food contaminants 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. 2020-06-05T10:45:55Z 2020-06-05T10:45:55Z 2019-04 info:eu-repo/semantics/article 0039-9140 http://hdl.handle.net/10259/5326 10.1016/j.talanta.2018.11.048 eng Talanta. 2019, V. 195, p. 251-257 https://doi.org/10.1016/j.talanta.2018.11.048 info:eu-repo/grantAgreement/JCyL/BU055U16 http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 Internacional Elsevier