Dioxins (PCDDs) and furans (PCDFs) are a group of chemical substances with highly toxic potential, which can accumulate in food commodities, through the food chain. In this paper are presented the results of the experiments conducted in order to determine dioxins and furans in egg samples, using high resolution gas chromatography coupled to high resolution mass spectrometry (HRGC/HRMS). There had been analyzed egg samples from the market, through the following steps: fat extraction, purification and concentration of the extract, separation, identification and quantification of the PCDD/F compounds. The concentrations of each dioxin and furan native congener, from each egg sample, were multiplied by their respective Toxic Equivalency Factor (TEF), as established by the World Health Organisation (WHO) and listed in the Commission Regulation (EU) No 252/2012, and then summed to give the total concentration of dioxins expressed as Toxic Equivalents (TEQs), in pg/g fat. In the case of the analyzed samples, the sum of dioxins (WHO-PCDD/F-TEQ) variated between 0.0236 to 0.047 pg/g fat, which is below the maximum allowed level by the Commission Regulation (EU) No 252/2012.
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