Table 1: Optical parameters and regression characteristic for eperisone hydrochloride.

Sr. no.ParameterResult

Absorption maxima (nm)261.40
Linearity range (μg/mL)2–20
Standard regression equation
Correlation coefficient ( )0.99936
Molar absorptivity (L/mol/cm)14718.93
(1%, cm)497.5
Sandell’s sensitivity (μg/cm2)0.02
Intraday precision (% RSD)0.14
Interday precision (% RSD)0.28
LOD (μg/mL)0.33
LOQ (μg/mL)1.0