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Proton chemical shifts (ppm) for rhamnolipid before and after soil washing.
| Segment | Pure | PHE | Cd |
|---|---|---|---|
| H1 | 0.747 | 0.736 | 0.742 |
| H2 | 1.155 | 1.147 | 1.151 |
| H3 | 2.325 | 2.317 | 2.313 |
| H4 | 3.336 | 3.332 | 3.330 |
| H5 | 3.582 | 3.575 | 3.571 |
| H6 | 3.941 | 3.936 | 3.998 |
| H7 | 5.165 | 5.159 | 5.155 |
