Figure 3: a. Chromatogram of laboratory prepared mixture of Ambroxol HCl (50g/ml) eluted at 16.345min, Guaifenesin (50g/ml) at 10.4 min, Ambroxol HCl degradate (30g/ml) at 3.93min and Guaicol (5g/ml) at 8.4min. b. Chromatogram of Mucosin syrup with Ambroxol HCl (15g/ml) and Guaifnesin (100g/ml) together with two other peaks of the additives at 4.9 min and 12.7 min.