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Half-life (t1/2) and degradation kinetic constants (k) values for each antibiotic at the three pH tested. Average values (n = 3) ± standard error.
| k (h−1) | t1/2 (h) | R2 | |
|---|---|---|---|
| Ciprofloxacin | |||
| pH 4.0 | 3.13 ± 0.48 | 0.22 | 0.966 |
| pH 5.5 | 4.14 ± 0.47 | 0.17 | 0.981 |
| pH 7.0 | 10.37 ± 2.07 | 0.07 | 0.906 |
| Clarithromycin | |||
| pH 4.0 | 0.34 ± 0.02 | 2.06 | 0.999 |
| pH 5.5 | 0.25 ± 0.03 | 2.82 | 0.991 |
| pH 7.0 | 0.19 ± 0.01 | 3.57 | 0.991 |
| Trimethoprim | |||
| pH 4.0 | 0.09 ± 0.02 | 7.35 | 0.978 |
| pH 5.5 | 0.12 ± 0.02 | 5.81 | 0.989 |
| pH 7.0 | 0.18 ± 0.03 | 3.95 | 0.984 |
