title: Microdetermination of ascorbic acid and tryptophan by colorimetry.
mesh_terms: D001205:Ascorbic Acid / Q000032:analysis*; D003124:Colorimetry; D008832:Microchemistry; D013778:Tetrazolium Salts; D014364:Tryptophan / Q000032:analysis*
chemical_list: D013778:Tetrazolium Salts; D014364:Tryptophan; D001205:Ascorbic Acid