Figure 2From: A rapid assessment method for determination of iodate in table salt samples Effect of the concentration of variamine blue dye on absorbance at 550 nm. [IO3 −] = 10 μg, KI = 250 μg, H2SO4 = 1 mL [2 M], CH3COONa [2 M] = 2 mL, equilibration time = 300 s.Back to article page