| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| shufeng li | 0.73 | 0.7 | 602 | 21 | 10 |
| shufeng | 1.84 | 0.1 | 82 | 57 | 7 |
| li | 0.29 | 0.3 | 5001 | 59 | 2 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| shufeng li | 1.63 | 0.4 | 5241 | 80 |
| shufeng li pnas | 1.67 | 0.8 | 5612 | 50 |
| shufeng liu analytical chemistry | 0.98 | 0.6 | 6862 | 97 |
| shufeng liu | 1.25 | 0.3 | 2425 | 96 |
