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EPR spectra of AAPH radical adduct (assigned to RO• radical adduct) of CYPMPO that was recorded after the UV-photolysis of phosphate buffer solution, containing AAPH (5 mM), CYPMPO (5 mM) and DM-β-CD solubilized CA: (a) [DM-β-CD] = 0.94 mM and (b) [DM-β-CD] = 0.94 mM plus [CA] = 22.0 µM. Horizontal broken lines in the spectra demonstrate the change in EPR signal height of the selected peak by the addition of the antioxidant CA.
