Table 6: Kinetic models for the time interval 150–480 min.

ModelZero orderFirst orderHiguchiHixson-CrowellKorsmeyer-PeppasBaker-Lonsdale
Sample

0.5-Ibu-10.8460.8580.8120.8460.7870.0830.832
0.5-Ibu-20.9890.9890.9790.9890.9780.3350.981
1.0-Ibu-10.8210.8290.7700.8210.7220.0660.813
1.0-Ibu-20.9310.9400.8930.9310.8580.1160.922