Fe2(S04)3; ethylenediaminetetraacetic acid in phosphate buffer T=20°C; Oxidation; decomposition; pH=7.2; Kinetics; Further Variations:without/with Fe(3+);

dihydrofolate reductase (E.(5)C113); ammonium acetate; NADPH T=37°C; var. of pH, enzyme source; Kinetics;