
Keywords: SG, silica gel; IPS, (3-[1-imidazolyl]-propylcarbamoyl)-3′-aminopropylsilica; PSG, 4-pyridyl-methyl-carbamoyl-aminopropylsilica; MnTDCPP, 5,10,15,20-tetrakis(2,6-dichlorophenyl)porphine-manganese(III); VA, veratryl alcohol; ARS, alizarin red S; AzB, azure