International Scholarly Research Notices

Research Article

Development and Validation of High Performance Liquid Chromatography Method for Simultaneous Estimation of Ambroxol and Doxofylline in Their Combined Tablet Dosage Form

Table 7

Robustness data for Doxofylline.
Factors% RSDTailing factor ( )Efficiency (theoretical plates)Resolution
pH of mobile phase    
 pH 4.31.34151.362734714.724
 pH 4.70.91341.391727314.810
Flow rate    
 0.8 mL/min0.51801.367729414.736
 1.2 mL/min0.80751.386729214.745
Solvent %    
 −2%1.19181.348732714.698
 +2%0.92941.413729314.672