| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| with the concentration gradient | 0.69 | 0.5 | 8737 | 39 | 31 |
| with | 1.17 | 1 | 7320 | 53 | 4 |
| the | 0.75 | 1 | 6526 | 96 | 3 |
| concentration | 1.65 | 0.9 | 8132 | 48 | 13 |
| gradient | 0.36 | 0.5 | 845 | 27 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| with the concentration gradient | 1.04 | 0.3 | 9705 | 63 |
