[Gas chromatographic analysis of biological amino acids using 2,4-dinitrophenyl amino acid methyl ester].
D000596:Amino Acids / Q000032:analysis*; D002849:Chromatography, Gas; D004140:Dinitrophenols / Q000032:analysis*; D006801:Humans
D000596:Amino Acids; D004140:Dinitrophenols