| 实验 | pH | 温度℃ | PEI-WT投加量g | 单位吸附量mg/g |
| 1 | −1 | −1 | 0 | 1.45 |
| 2 | 1 | 1 | 0 | 4.52 |
| 3 | 0 | 0 | 0 | 5.02 |
| 4 | 0 | 0 | 0 | 4.68 |
| 5 | 0 | −1 | 1 | 3.43 |
| 6 | −1 | 1 | 0 | 1.52 |
| 7 | −1 | 0 | 1 | 1.78 |
| 8 | 1 | 0 | −1 | 5.61 |
| 9 | 1 | −1 | 0 | 4.54 |
| 10 | 0 | 0 | 0 | 5.81 |
| 11 | 0 | 0 | 0 | 5 |
| 12 | 0 | 1 | −1 | 4.66 |
| 13 | 0 | −1 | −1 | 3.49 |
| 14 | 1 | 0 | 1 | 4.56 |
| 15 | −1 | 0 | −1 | 3 |
| 16 | 0 | 0 | 0 | 4.85 |
| 17 | 0 | 1 | 1 | 2.98 |