Table 6: Robustness data for Ambroxol.

Factors% RSDTailing factor ( )Efficiency (theoretical plates)Resolution

pH of mobile phase
 pH 4.31.19351.455690314.724
 pH 4.70.75491.348731814.810

Flow rate
 0.8 mL/min0.70221.375709014.736
 1.2 mL/min0.70721.429710914.745

Solvent %
 −2%1.00151.348689014.698
 +2%1.10291.455685114.672