Parameter   Number of theoretical plates*   Capacity* factor   Tailing factor*   Retention time* Lamivudine 0.16 0.14 0.22 0.12 Ketoconazole 0.18 0.15 0.24 0.15 Indinavir 0.2 0.13 0 .27 0.16

* % RSD (n=3)

Table 5: Results of system suitability study.