Item Resolution (Rs) Selectivity
(ᵟ)
Tailing Factor
(t)
Capacity factor
(K)
Number of theoretical plates (N) Height eq. to theoretical plate (HETP)
Reference value > 1.5 > 1.0 About 1 1-10 Increase with efficient separation The smaller the value the higher the efficiency
Ezetimibe
System-1 2.1 1.05 0.96 2.3 3240 1.21 X 10-3
System-2 1.8 1.02 1.02 1.9  2996 2.6 X 10-3
Simvastatin
System-1 2.3 1.1 1.03 3.2 3589 1.23 X 10-3
System-2 1.9 1.03 1.05 2.1 3033 2.4 X 10-3
Table2: System suitability parameters of the proposed TLC-densitometric assays.