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Zeta potential and pH of the three formulations
| Formulation | Zeta potential (mV) | pH |
|---|---|---|
| A | −1.2 ± 0.3 | 5.5 ± 0.1 |
| B | −2.3 ± 0.2 | 6.4 ± 0.1 |
| C | −6.0 ± 0.1 | 5.8 ± 0.1 |
Note: A: Polysorbate-85/Labrasol®; B: Polysorbate-85/Cremophor® EL; C: glycerol/Polysorbate-85.
