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

Table 5

Statistical data for Ambroxol and Doxofylline by HPLC method.

Parameter	Ambroxol	Doxofylline
Linear range (𝜇g/mL)	3.75–11.25	50–150
Slope	57.06	34.24
Limit of detection (𝜇g/mL)	0.59	1.80
Limit of quantitation (𝜇g/mL)	4.97	15.06