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Table 2 Parameters for the performance of the proposed spectrophotometric method for determination of CIN

From: Novel spectrophotometric method for determination of cinacalcet hydrochloride in its tablets via derivatization with 1,2-naphthoquinone-4-sulphonate

Parameter

Value

Measurement wavelength (nm)

490

Linear range (μg/ml)

3 - 100

Intercept

0.0092

Standard deviation of the intercept

0.0051

Slope

0.0090

Standard deviation of the slope

0.0001

Correlation coefficient (r)

0.9993

Limit of detection, LOD (μg/ml)

1.9

Limit of quantification, LOQ (μg/ml)

5.7

Molar absorptivity, ε (l/mol/cm)

4.2 × 105