title: Studies of urobilinogen; further experience with the simple quantitative Ehrlich reaction; corrected calibration of the Evelyn colorimeter with a pontacyl dye mixture in terms of urobilinogen.
authors.forename: C J
authors.initials: CJ
authors.lastname: WATSON
authors.forename: V
authors.initials: V
authors.lastname: HAWKINSON
mesh_terms: D001826:Body Fluids; D002138:Calibration; D003124:Colorimetry; D006801:Humans; D010860:Pigments, Biological; D014556:Urine; D014558:Urobilinogen
chemical_list: D010860:Pigments, Biological; D014558:Urobilinogen
keywords: COLORIMETRY; EHRLICH REACTION; URINE/pigments