title: An automatic method of separation and quantitative determination of methylthiohydantoins of acidic and neutral amino acids using sulfopolystyrene resins.
mesh_terms: D000596:Amino Acids / Q000032:analysis* / Q000302:isolation & purification; D001322:Autoanalysis; D002852:Chromatography, Ion Exchange; D006827:Hydantoins / Q000302:isolation & purification*; D008722:Methods; D010434:Pepsin A / Q000032:analysis; D010455:Peptides / Q000032:analysis; D013440:Sulfides / Q000302:isolation & purification
chemical_list: D000596:Amino Acids; D006827:Hydantoins; D010455:Peptides; D013440:Sulfides; D010434:Pepsin A