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Partition coefficient (K) of four isoflavones in different solvent systems of n-hexane–ethyl acetate–methanol–water
| NO. | Solvent system (v/v) |
K ononin | Kbiochanin A-7-glucoside | K formononetin | Kbiochanin A |
|---|---|---|---|---|---|
| 1 | 7:5:7:5 | -- | -- | 0.31 | 1.09 |
| 2 | 6:5:6:5 | -- | -- | 0.36 | 1.62 |
| 3 | 5:5:5:5 | 0.003 | 0.02 | 0.90 | 3.02 |
| 4 | 4:5:4:5 | 0.01 | 0.04 | 1.81 | 4.71 |
| 5 | 3:5:3:5 | 0.16 | 0.30 | 14.13 | 41.72 |
| 6 | 2:5:2:5 | 0.15 | 0.64 | 29.13 | 108.09 |
| 7 | 1:5:1:5 | 0.51 | 1.97 | 70.66 | -- |
| 8 | 0:1:0:1 | 1.35 | 2.88 | 79.56 | -- |
