title: The analysis of nanogram levels of free amino acids by reverse-phase high-pressure liquid chromatography.
mesh_terms: D000596:Amino Acids / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D008832:Microchemistry; D014443:Tyrosine / Q000032:analysis
chemical_list: D000596:Amino Acids; D014443:Tyrosine