title: On the derivatives for the ultramicrodetermination of amino acids by mass fragmentography.
mesh_terms: D000409:Alanine / Q000032:analysis; D000596:Amino Acids / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D005971:Glutamates / Q000032:analysis; D007202:Indicators and Reagents; D007930:Leucine / Q000032:analysis; D008832:Microchemistry; D011392:Proline / Q000032:analysis; D014633:Valine / Q000032:analysis
chemical_list: D000596:Amino Acids; D005971:Glutamates; D007202:Indicators and Reagents; D011392:Proline; D007930:Leucine; D014633:Valine; D000409:Alanine