| Concentration of surfactant | Logarithm Partition Coefficient of Gemifloxacin | |||
|
| Sodium lauryl sulfate | Cetylmethylammonium bromide | Polysorbate-20 | Polysorbate-80 |
| 0.00 | −3.4743 | −3.4743 | −3.4743 | −3.4743 |
| 0.05 | −3.7050 | −3.6624 | −3.5999 | −3.5389 |
| 0.10 | −3.7206 | −3.6894 | −3.6454 | −3.6070 |
| 0.20 | −3.7498 | −3.7072 | −3.6837 | −3.6660 |
| 0.50 | −3.7741 | −3.7377 | −3.7121 | −3.7015 |
| 1.0 | −3.8080 | −3.7675 | −3.7441 | −3.7050 |
| 2.0 | −3.8385 | −3.8087 | −3.7987 | −3.7434 |