Wright, C Inter-laboratory comparison of polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) in bleaching earth used in the refinement of edible oils. [electronic resource] - Food additives and contaminants Aug 2005 - 716-25 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0265-203X Standard No.: 10.1080/02652030500157643 doi Subjects--Topical Terms: Aluminum Silicates--chemistryAnimal FeedAnimalsBentonite--chemistryBenzofurans--analysisClayDietary Fats, UnsaturatedEuropePolychlorinated Dibenzodioxins--analogs & derivativesReproducibility of ResultsSoil Pollutants--analysisUnited States