The metalloporphyrin-mediated simazine oxidation was investigated, in order to evaluate whether metalloporphyrins were good biomimetic models for the oxidation of this herbicide. The commercially available second-generation metalloporphyrins: 5, 10, 15, 20-tetrakis (2, 6- dichlorophenyl) porphyrin metal (III) chloride,[M (TDCPP)] Cl; 5, 10, 15, 20-tetrakis (pentafluorophenyl) porphyrin metal (III) chloride,[M (TFPP)] Cl; and 5, 10, 15, 20-tetrakis ( ...