title: Drugs in feeds. Modified extraction procedure for ipronidazole in feeds containing bentonite.
mesh_terms: D000821:Animal Feed / Q000032:analysis; D001546:Bentonite; D002021:Buffers; D002849:Chromatography, Gas; D006863:Hydrogen-Ion Concentration; D008722:Methods; D009593:Nitroimidazoles / Q000032:analysis*; D012997:Solvents
chemical_list: D002021:Buffers; D009593:Nitroimidazoles; D012997:Solvents; D001546:Bentonite