title: An optimized MALDI mass spectrometry method for improved detection of lysine/arginine/histidine free peptides.
mesh_terms: D000818:Animals; D001120:Arginine / Q000032:analysis*; D005841:Gentisates / Q000737:chemistry; D006639:Histidine / Q000032:analysis*; D008239:Lysine / Q000032:analysis*; D051379:Mice; D010455:Peptides / Q000032:analysis* / Q000737:chemistry; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Q000379:methods*; D053719:Tandem Mass Spectrometry
chemical_list: D005841:Gentisates; D010455:Peptides; D006639:Histidine; D001120:Arginine; D008239:Lysine; C010925:2,5-dihydroxybenzoic acid