Levels of PCDDs, PCDFs and non-ortho PCBs in dietary supplement fish oil obtained in Spain.
Levels of PCDDs, PCDFs and non-ortho PCBs are reported for fish oils available in Spain which are consumed by the population as a dietary supplement. Trace enrichment methodology based on the use of modified silica and activated carbon chromatography was combined with on-column extraction (FMS 100) to separate PCDDs, PCDFs and PCBs from lipid material. The extracts were further cleaned up on disposable Florisil columns and analysed by HRGC/HRMS (PCDD/F and non-ortho PCB fractions). Mean levels found in the samples were 10.50 ppt for total PCDDs and 9.95 ppt for total PCDFs. Calculated PCDD/F I-TEQ values were found to be 2.11 ppt on a lipid weight basis. Total mean levels found for co-planar PCBs (#77, 126 and 169) were 18.26 ppt and the calculated I-TEQ value was 0.31 ppt on a lipid weight basis.
Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry, Madrid, Spain.
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Jimenez
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Wright
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Kelly
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D001572:Benzofurans / Q000032:analysis*; D002214:Capsules; D000072338:Dibenzofurans, Polychlorinated; D005395:Fish Oils / Q000008:administration & dosage* / Q000737:chemistry*; D005506:Food Contamination; D005527:Food, Fortified; D007536:Isomerism; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis; D013030:Spain
D001572:Benzofurans; D002214:Capsules; D000072338:Dibenzofurans, Polychlorinated; D005395:Fish Oils; D000072317:Polychlorinated Dibenzodioxins; D011078:Polychlorinated Biphenyls