Optical and gamma irradiation studies of morin in ethanol

Abstract

Spectral studies of morin in aqueous ethanol and other alcohols have been carried out as a function of its concentration and that of ethanol, and the pH of aqueous buffer. The effect of gamma radiations on morin solution in ethanol was also studied as a function of dose in the range of 0.15–2.28 kGy and of morin concentration (10⁻⁵–10⁻⁴ mole·dm⁻³). Morin concentration in ethanol solution showed a linear response for G values to a dose of 1.83 kGy. Molar absorption coefficients (ε) for morin in ethanol have been estimated to be∈ _260nm=2.28·10⁴ dm³·mol⁻¹·cm⁻¹ and∈ _291nm=8.22·10³ dm³·mol⁻¹·cm⁻¹ for unirradiated and∈ _{291 nm}=1.75·10⁴ dm³·mol⁻¹·cm⁻¹ for irradiated solutions to a dose of 1.83 kGy.