title: ADAPTATION OF THE BERTHELOT COLOR REACTION FOR THE DETERMINATION OF UREA NITROGEN IN SERUM AND URINE TO AN ULTRAMICRO SYSTEM.
mesh_terms: D000641:Ammonia; D001774:Blood Chemical Analysis; D001826:Body Fluids; D006801:Humans; D008832:Microchemistry; D009584:Nitrogen; D012106:Research; D014508:Urea; D014556:Urine
chemical_list: D000641:Ammonia; D014508:Urea; D009584:Nitrogen
keywords: AMMONIA; BLOOD CHEMICAL ANALYSIS; EXPERIMENTAL LAB STUDY; MICROCHEMISTRY; NITROGEN; UREA; URINE