Figure 3From: A rapid assessment method for determination of iodate in table salt samples Effect of the pH of reaction mixture on the absorbance value. [IO3 −] = 10 μg, KI = 250 μg, H2SO4 = 1 mL [2 M], dye = 2.44 μM, CH3COONa [2 M] = 2 mL, equilibration time = 300 s.Back to article page