title: Gas-liquid chromatographic analysis of 2,4-dinitrophenylhydrazones of keto acid methyl esters.
mesh_terms: D002849:Chromatography, Gas; D004140:Dinitrophenols / Q000032:analysis; D006835:Hydrazones / Q000032:analysis; D007651:Keto Acids / Q000032:analysis*; D008722:Methods; D010659:Phenylhydrazines
chemical_list: D004140:Dinitrophenols; D006835:Hydrazones; D007651:Keto Acids; D010659:Phenylhydrazines