The solution of DPPH in methanol (6.5*10 5 M) was prepared daily before measurements on a UV/visible light spectrophotometer Spectronic Genesys 8 (Thermo Spectronic, Rochester, NY) at 515 nm
The solution of DPPH in methanol (6.5*10 5 M) was prepared daily beforemeasurements on a UV/visible light spectrophotometer SpectronicGenesys 8 (Thermo Spectronic, Rochester, NY) at 515 nm