title: Separation of polychlorinated biphenyls from toxaphene by silicic acid column chromatography.
mesh_terms: D002845:Chromatography / Q000379:methods; D007306:Insecticides / Q000302:isolation & purification*; D011078:Polychlorinated Biphenyls / Q000302:isolation & purification*; D014112:Toxaphene / Q000302:isolation & purification*
chemical_list: D007306:Insecticides; D014112:Toxaphene; D011078:Polychlorinated Biphenyls