Table 3.
Effect of solvent type and preparation method on hardening time of microparticles.
| Solvent | Hardening time (min) |
|
|---|---|---|
| O/W | W/O/W | |
| dichloromethane | 10.5 | 11.5 |
| dichloromethane/methanol (1:1) | 10 | 12 |
| chloroform | 60 | 90 |
| ethyl acetate | 12 | 10 |
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