Drugs/Parameters Theoretical Plates (N) Resolution (R) Capacity Factor (K) Tailing Factor (T) Selectivity (α)
Amlodipine Besylate 4841.32 5.45 3.24 1.59 1.57
Amlodipine impurity A 8140.99 4.96 4.38 1.13 1.36
Atorvastatin impurity A 10890.33 13.56 8.33 1.09 1.9
Atorvastatin Calcium 11591.13 4.61 10.07 1.18 1.21
Atorvastatin impurity C 12602.44 2.87 11.27 1.05 1.12
Amlodipine impurity B 16468.69 11.29 16.83 1.01 1.49
Table 3: System suitability parameters of all drugs were obtained from Method Validation.