| 
      
        | Obtained value (BENZ)
 | Obtained value (ALP)
 | Parameters |  
        | 4.3 | Resolution (Rs) |  
        | 1.26 | Selectivity factor (α) |  
        | 1.2 | 1 | Tailing factor (T) |  
        | 3.3 | 4.4 | Capacity factor (k') |  
        | 45143 | 25695 | Number of theoretical plates (n) |  
        | 3.8 × 10-3 cm-1 | 5.6 × 10-2 cm-1 | HETP a |  | 
  
    | HETPa = height equivalent to theoretical plates (cm/ plate). | 
  
    | Table 3: System suitability testing parameters of HPLC method. |