title: Separation of furosemide, phenylbutazone and oxyphenbutazone in plasma by direct injection onto internal surface reversed-phase columns with systematic optimization of selectivity.
mesh_terms: D002851:Chromatography, High Pressure Liquid; D005665:Furosemide / Q000097:blood*; D006801:Humans; D010113:Oxyphenbutazone / Q000097:blood*; D010653:Phenylbutazone / Q000097:blood*; D012997:Solvents
chemical_list: D012997:Solvents; D005665:Furosemide; D010653:Phenylbutazone; D010113:Oxyphenbutazone