title: A method of treatment, prior to analysis for copper, in copper-supplemented feeds.
mesh_terms: D000821:Animal Feed / Q000032:analysis*; D000818:Animals; D003300:Copper / Q000032:analysis*; D005503:Food Additives / Q000032:analysis*; D008722:Methods; D013552:Swine
chemical_list: D005503:Food Additives; D003300:Copper