Table 3. Calculated Nominal UWL Thicknesses Using the Stirring Rate Method.
| stirring rate (rpm) | calculated
nominal UWL thickness (μm) |
|||||
|---|---|---|---|---|---|---|
| ATZ | ATZ with BSA | CTZ with BSA | ||||
| free drug | aggregates | free drug | aggregates | free drug | aggregates | |
| 60 | 4518a | 37.8a | 1901.7a | 15.5a | 14,842a | 12.6 |
| 100 | 3058a | 25.6a | 1550.1a | 12.7a | 10,831a | 9.2 |
| 150 | 2243 | 18.8 | 1317.9 | 10.8 | 8435 | 7.1 |
| 300 | 1320 | 11.0 | 998.6 | 8.2 | 5501a | 4.6a |
| 500 | 894 | 7.5 | 814.0 | 6.7 | 4014a | 3.4a |
| 1000 | 526 | 4.4 | 616.8 | 5.1 | 2618a | 2.2a |
Experiments not performed at these conditions. Values of α and 1/K were determined (eqs S21 and S19) using 1/Papp values obtained from experimental data collected at different stirring rates, and nominal UWL thicknesses for the free drug and aggregates were then calculated using eqs 20 and 22.