title: New approach to the mass spectroscopy of non-volatile compounds.
mesh_terms: D000596:Amino Acids / Q000032:analysis*; D001120:Arginine / Q000032:analysis; D003553:Cystine / Q000032:analysis; D005069:Evaluation Studies as Topic; D013058:Mass Spectrometry / Q000295:instrumentation; D008722:Methods; D008968:Molecular Conformation; D013329:Structure-Activity Relationship; D013997:Time Factors
chemical_list: D000596:Amino Acids; D003553:Cystine; D001120:Arginine