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The oxidation of methionine by quinolinium fluorochromate (QFC) was studied in the presence of chloroacetic acid, in water/organic solvent mix- tures of varying excess molar free energy function. The reaction is first order with respect to both QFC and acid. The reaction rates were determined at dif- ferent temperatures and the activation parameters computed. The rate data was correlated with different solvent parameters using linear multiple regression analysis. From the results, information on the solvent-reactants and the sol- vent-transition state interactions was obtained.

Effect of excess free energy of solvents on the oxidation of methionine by quinolinium fluorochromate: A kinetic study