[{"command":"settings","settings":{"pluralDelimiter":"\u0003","suppressDeprecationErrors":true,"user":{"uid":0,"permissionsHash":"d9587e6f410d2e7f476e3da6cb10a457c78ab82347f962bf83d9020620f901dd"}},"merge":true},{"command":"add_css","data":[{"rel":"stylesheet","media":"all","href":"\/modules\/contrib\/addtocal\/addtocal.css?t2408i"},{"rel":"stylesheet","media":"all","href":"\/themes\/custom\/cest2025\/css\/components\/node.css?t2408i"}]},{"command":"add_js","selector":"body","data":[{"src":"\/core\/assets\/vendor\/jquery\/jquery.min.js?v=3.7.1"},{"src":"\/core\/assets\/vendor\/once\/once.min.js?v=1.0.1"},{"src":"\/core\/misc\/drupalSettingsLoader.js?v=10.5.1"},{"src":"\/core\/misc\/drupal.js?v=10.5.1"},{"src":"\/core\/misc\/drupal.init.js?v=10.5.1"},{"src":"\/modules\/contrib\/addtocal\/addtocal.js?v=10.5.1"},{"src":"\/modules\/contrib\/addtocal\/addtocal-download.js?v=10.5.1"}]},{"command":"openDialog","selector":"#drupal-modal","settings":null,"data":"\n\u003Carticle class=\u0022node node--type-presentation node--promoted node--view-mode-modal\u0022\u003E\n  \n      \u003Cb\u003E\u003Cspan\u003EDetermination of Polybrominated diphenyl ethers (PBDEs) in Fish Feed by QuEChERS and GCxGC-TOF MS\u003C\/span\u003E\n\u003C\/b\u003E\n  \n      \u003Cdiv\u003E\u003Cb\u003ECEST ID: cest2025_00328\u003C\/b\u003E\u003C\/div\u003E\n  \n        \u003Cdiv class=\u0022mb-3\u0022\u003E\n      \u003Cb\u003ERoom  | Sat 6 Sep 2025 | 17:00 - 18:00 pm\u003C\/b\u003E\n    \u003C\/div\u003E\n  \n          \n    \n  \n      \u003Cdiv class=\u0022mt-10\u0022\u003E\n            \u003Cdiv class=\u0022clearfix text-formatted field field--name-presentation-body field--type-text-long field--label-hidden field__item\u0022\u003EPolybrominated diphenyl ethers (PBDEs) are organic pollutants widely used as flame retardants in various products. Due to their stability and lipophilic nature, PBDEs tend to bioaccumulate in aquatic organisms, raising concerns about their presence in aquaculture products. In this study, a sensitive and reliable analytical method was developed for the determination of PBDEs in fish feed using a modified QuEChERS extraction followed by comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry (GC\u00d7GC-TOF MS). Method optimization and validation were carried out using spiked samples. The procedure yielded satisfactory recoveries. Limits of detection ranged between 0.03 and 0.40 ng\/g, while linearity was excellent. The results confirm the method\u2019s robustness and suitability for future application in routine analysis of PBDEs in fish feed and related matrices. This work contributes to improving food safety monitoring in aquaculture by enabling the trace-level determination of flame retardants in complex sample matrices.\u003C\/div\u003E\n      \u003C\/div\u003E\n  \n  \u003Cdiv class=\u0022mt-5 mb-5\u0022\u003E\n          \u003Cspan\u003E\n          \u003Cb\u003EPresenter:\u003C\/b\u003E\n                      \u003Cp\u003E\n            Prof Ioannis Konstantinou\n            \u003C\/p\u003E\n                  \u003C\/span\u003E\n      \u003C\/div\u003E\n\n  \u003Cdiv class=\u0022mb-5\u0022\u003E\n          \u003Cdiv class=\u0022field__label\u0022\u003E\n        Authors\n      \u003C\/div\u003E\n              \u003Cp\u003E\n          Christina Efthimiou\n        \u003C\/p\u003E\n              \u003Cp\u003E\n          Dionysia Sykalia\n        \u003C\/p\u003E\n              \u003Cp\u003E\n          Charoula Tsoutsi\n        \u003C\/p\u003E\n              \u003Cp\u003E\n          Dimitra Hela\n        \u003C\/p\u003E\n              \u003Cp\u003E\n          Ioannis Konstantinou\n        \u003C\/p\u003E\n            \u003C\/div\u003E\n\n\u003C\/article\u003E\n","dialogOptions":{"width":"700","position":{"my":"right top","at":"right top"},"closeOnEscape":true,"dialogClass":"presentation-dialog","modal":true,"title":"","classes":{"ui-dialog":"presentation-dialog"}}}]