| S.No | 
        Interday studies | 
        Intraday studies | 
       
      
        | 60(ng/mL)  | 
        200(ng/mL)  | 
        400(ng/mL)  | 
        60(ng/mL)  | 
        200(ng/mL)  | 
        400(ng/mL)  | 
       
      
        | 1 | 
        4668 | 
        15563 | 
        31104 | 
        4742 | 
        15742 | 
        31523 | 
       
      
        | 2 | 
        4683 | 
        15321 | 
        30984 | 
        4318 | 
        16732 | 
        31842 | 
       
      
        | 3 | 
        4532 | 
        15832 | 
        30627 | 
        4261 | 
        15372 | 
        31537 | 
       
      
        | 4 | 
        4583 | 
        15381 | 
        31832 | 
        4739 | 
        15731 | 
        31735 | 
       
      
        | 5 | 
        4628 | 
        15931 | 
        30999 | 
        4783 | 
        15824 | 
        31934 | 
       
      
        | 6 | 
        4599 | 
        15752 | 
        31873 | 
        4700 | 
        15732 | 
        31562 | 
       
      
        | Mean | 
        4615.5 | 
        15630 | 
        31236.5 | 
        4590.5 | 
        15855.5 | 
        31688.8 | 
       
      
        | SD | 
        56.159594 | 
        248.298 | 
        503.778 | 
        235.32 | 
        457.526 | 
        174.55 | 
       
      
        | RSD | 
        1.21676078 | 
        1.5886 | 
        1.61279 | 
        5.12624 | 
        2.8856 | 
        0.55083 | 
       
      |