Development and Validation of HPTLC Method for Estimation of Propranolol Hydrochloride and Flunarizine Dihydrochloride in Combined Dosage Form

Table 1

Regression analysis of calibration curve.

Parameter	PRO	FLU
Linearity (𝜇g/mL)	400–2400	50–300
Correlation coefficient (𝑟)	0.974	0.989
Slope of regression	0.94	4.013
Standard deviation of slope	0.060	0.2372
Intercept of regression	5356.4	1373.4
Standard deviation of intercept	79.128	55.456