Table 1.

Validation parameters for the determination of ezetimibe and atorvastatin by the proposed method.

Parameter	Ezetimibe	Atorvastatin
Concentration range (μg/ml)	2.5–50	1.0–100
Intercept (b)	0.005	−0.012
Slope (m)	0.018	0.033
Correlation coefficient (r)	0.9992	0.9999
Sb	0.0099	0.0112
Sm	0.0003	0.0001
Sx/y	0.0157	0.0178
DL (μg/ml)	0.07	0.06
QL (μg/ml)	0.25	0.20

S_b = standard deviation of intercept.

S_m = standard deviation of slope.

S_x/y = Standard deviation of the residual.