title: An improvement of the spectrophotometric method for the determination of tyrosinase catecholase activity by Besthorn's hydrazone.
mesh_terms: D004156:Catechol Oxidase / Q000032:analysis*; D006835:Hydrazones; D007202:Indicators and Reagents; D011809:Quinones; D013053:Spectrophotometry / Q000379:methods
chemical_list: D006835:Hydrazones; D007202:Indicators and Reagents; D011809:Quinones; D004156:Catechol Oxidase