Critical validation of a GC-MS/MS methodology for confirmatory quantification of dioxins and PCBs in fish/ fish oil: Integrating a tiered surveillance strategy.

Dioxins and polychlorinated biphenyls (PCBs) are toxic, bioaccumulative persistent organic pollutants (POPs) requiring sensitive analysis in critical matrices, such as fish and fish products, to meet stringent regulatory standards. This study introduces a cost-effective complement to high-resolution mass spectrometry through a refined gas chromatography-tandem mass spectrometry workflow. The methodology integrates streamlined sample preparation, validation under European Union, 2017, and comprehensive measurement uncertainty estimation.

Harnessing coconut shell waste: Innovative utilization of activated carbon for effective quantification and decontamination of dioxins in fish oil.

Effective management of dioxins and polychlorinated biphenyls (PCBs) in food/feed matrices demands widespread surveillance and innovative decontamination strategies. This study investigates a cost-effective approach using coconut shell-based activated carbon (AC) as an efficient sorbent for two key applications: (i) facilitating the fractionation of dioxins and PCBs during routine analysis to improve surveillance and (ii) decontaminating these pollutants from feed-grade fish oil. The developed AC exhibited enhanced textural characteristics, transitioning from mesoporous to predominantly microporous structure.