title: A new colorimetric method for the measurement of serum calcium using a zinc-zincon indicator.
authors.forename: S W
authors.initials: SW
authors.lastname: Mann
authors.forename: A
authors.initials: A
authors.lastname: Green
mesh_terms: D001391:Azo Compounds; D002118:Calcium / Q000097:blood*; D003124:Colorimetry / Q000379:methods; D005562:Formazans; D006801:Humans
chemical_list: D001391:Azo Compounds; D005562:Formazans; C009809:2-carboxy-2'-hydroxy-5'-sulfoformazylbenzene; D002118:Calcium