Research Article

A Sensitive Spectrophotometric Estimation of Nimodipine in Tablets and Injection Using Phloroglucinol

Table 2

Optical characteristics and precision.

ParameterProposed method

 nm410
Beer’s law range ( g/mL)0–25
Linearity range ( g/mL)0.2–23
Molar absorptivity ( ), (L/mol/cm)
Sandell’s sensitivity ( g cm−2)0.034
Intercept ( )−0.014
Slope ( )0.030
Correlation coefficient ( )0.997
0.021
0.001
LOQ ( g/mL)0.189
LOD ( g/mL)0.063

where is the concentration of NMD in g/mL and is the absorbance at 410 nm. is the standard deviation of intercept, and is the standard deviation of slope.