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Table 1 Calibration curve data for chlorpheniramine maleate, paracetamol and caffeine

From: Validated RP-HPLC method for simultaneous determination and quantification of chlorpheniramine maleate, paracetamol and caffeine in tablet formulation

Regression parameters

Chlorpheniramine maleate

Paracetamol

Caffeine

Regression equation

y = 0.7555x + 0.115

y = 0.5829x + 5.985

y = 1.7575x + 0.464

Correlation coefficient (R2)

0.9985

0.9997

0.9989

Slope

0.7555

0.5829

1.7575

Y-intercept

0.115

5.985

0.464

Concentration range (µg/mL)

1–50

1–500

1–150

Number of points

5

5

5