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Table 1 Validation data for determination of pregabalin by proposed method

From: A novel method for spectrophotometric determination of pregabalin in pure form and in capsules

Validation parameter Results
Absorption maximum 402.6 nm
Regression equation y = 1.908x - 0.056
Slope 1.908
Intercept 0.056
Beer's law limit (μg mL-1) 50-1000
Molar Absorptivity (L/mol-1/cm-1) 1198.4
Sandell's sensitivity (μg/cm2/0.001 A.U) 0.1328
Coefficient of correlation(r) 0.992
Limit of detection (LOD) 0.006 mg/mL
Limit of quantification (LOQ) 0.02 mg/mL
Accuracy 100.43 ± 1.24
Precision Intra-day = 0.62
  Inter-day = 0.61
Robustness Less than 1%
% Purity 99.8%