Figure 9: (a) First derivative synchronous fluorescence spectra of ATM (1-12) μg/mL at 276 nm in presence of 10 μg/mL of its acid degradation products; after addition of 2 mL 3.5 M SDS in aqueous solution. (b) First derivative synchronous fluorescence spectra of different concentrations of ATM degradation products (1,3,5,6,7) μg/mL at 265 nm in presence of 2 μg/mL ATM; after addition of 2 mL 3.5 mM SDS in aqueous solution.