title: Substitution of tetramethylbenzidine for benzidine in cyanide analyses.
mesh_terms: D001560:Benzidines; D001792:Blood Platelets / Q000378:metabolism; D003486:Cyanides / Q000097:blood*; D004912:Erythrocytes / Q000378:metabolism; D006801:Humans; D066298:In Vitro Techniques; D009599:Nitroprusside / Q000097:blood; D010949:Plasma / Q000378:metabolism; D013053:Spectrophotometry
chemical_list: D001560:Benzidines; D003486:Cyanides; D009599:Nitroprusside; C029876:benzidine; C021758:3,3',5,5'-tetramethylbenzidine