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Correlation coefficient (R2), and rate constants (k) obtained by fitting the data of 4-amino salicylic acid release from 4-ASA nanocomposite into PBS solution at pH 4.8 and 7.4
|
pH |
Saturation release (%) |
R2 |
pseudo-second order |
||
|---|---|---|---|---|---|
| pseudo-first order | pseudo-second order | Parabolic diffusion model | rate constant (k) (mg/min) | ||
| 7.4 |
92 |
0.9339 |
0.9982 |
0.8961 |
3.9 × 10-5 |
| 4.8 | 100 | 0.8839 | 0.9999 | 0.5925 | 1.0 × 10-4 |
