Table 2 Results of long-term stability test.
Storage time | pH | Paticle size | Content | EE (%) | Release rate (%) | Release rate (%) |
|---|---|---|---|---|---|---|
(37 °C 1 h) | (41 °C 1 h) | |||||
1 day | 6.52 | 98.25 | 1.10 | 98.66 | 6.3 | 89.23 |
6.51 | 101.6 | 1.07 | 98.34 | 7.6 | 93.72 | |
6.55 | 98.5 | 1.03 | 98.22 | 8.2 | 95.06 | |
14 days | 6.46 | 101.4 | 1.12 | 98.59 | 7.5 | 92.4 |
6.50 | 101 | 1.03 | 98.72 | 6.6 | 95.2 | |
6.51 | 100.1 | 1.02 | 98.36 | 8.9 | 97.07 | |
1 month | 6.43 | 100.5 | 1.09 | 98.62 | 6.5 | 40.3 |
6.47 | 101.5 | 1.04 | 98.76 | 7.8 | 50.2 | |
6.46 | 98.9 | 1.01 | 98.91 | 7.6 | 26.95 | |
2 months | 6.43 | 98.25 | 1.05 | 99.02 | 8.5 | 9.89 |
6.47 | 101.6 | 1.02 | 98.92 | 7.9 | 9.68 | |
6.46 | 98.5 | 0.99 | 98.79 | 6.7 | 15.74 |
