title: Determination of various drugs in rodent diet mixtures.
abstract: Methods employing solvent extraction, thin-layer chromatography, gas-liquid chromatography, and UV spectrophotometry are described for the quantitative determination of halofenate, cyclobenzaprine and sulindac in rodent diet mixtures. Halofenate was hydrolyzed to its free acid derivative and converted to a methyl ester prior to assay. The drugs were shown to be stable when stored in food mixtures at room temperature for seven days. Diet mixtures containing the three drugs were demonstrated to be uniformly mixed by the procedure employed.
mesh_terms: D000639:Amitriptyline / Q000031:analogs & derivatives; D000821:Animal Feed / Q000032:analysis*; D000818:Animals; D001597:Benzylidene Compounds / Q000032:analysis; D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D003986:Dibenzocycloheptenes / Q000032:analysis; D004355:Drug Stability; D006218:Halofenate / Q000032:analysis; D007192:Indenes / Q000032:analysis; D008722:Methods; D004364:Pharmaceutical Preparations / Q000032:analysis*; D012377:Rodentia; D013053:Spectrophotometry
chemical_list: D001597:Benzylidene Compounds; D003986:Dibenzocycloheptenes; D007192:Indenes; D004364:Pharmaceutical Preparations; D000639:Amitriptyline; C004704:cyclobenzaprine; D006218:Halofenate