Figure 2


HPLC chromatograms of Red 2 dye solution (a–g) and the composition percentage of corresponding compounds (i–o) and the completely hydrolyzed solution (h); the pseudo first-order hydrolyzed velocity constant (p).


HPLC chromatograms of Red 2 dye solution (a–g) and the composition percentage of corresponding compounds (i–o) and the completely hydrolyzed solution (h); the pseudo first-order hydrolyzed velocity constant (p).