title: Determination of phenylthiohydantoin-amino acids by two-step laser desorption/multiphoton ionization.
mesh_terms: D000596:Amino Acids / Q000032:analysis*; D007834:Lasers; D008722:Methods; D010669:Phenylthiohydantoin
chemical_list: D000596:Amino Acids; D010669:Phenylthiohydantoin