title: Trace metal content of a herring oil at various stages of pilot-plant refining and partial hydrogenation.
mesh_terms: D005396:Fish Products / Q000032:analysis*; D005525:Food-Processing Industry; D006865:Hydrogenation; D008670:Metals / Q000032:analysis*; D009821:Oils / Q000032:analysis*; D014131:Trace Elements / Q000032:analysis
chemical_list: D008670:Metals; D009821:Oils; D014131:Trace Elements