title: Drugs in feeds. Determination of sulfaquinoxaline in feeds: collaborative study.
mesh_terms: D000042:Absorption; D000821:Animal Feed / Q000032:analysis*; D001152:Arsenicals / Q000032:analysis; D002852:Chromatography, Ion Exchange; D003124:Colorimetry; D008722:Methods; D011810:Quinoxalines / Q000032:analysis / Q000592:standards; D013424:Sulfanilamides / Q000032:analysis*
chemical_list: D001152:Arsenicals; D011810:Quinoxalines; D013424:Sulfanilamides