| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| ion source mass spectrometry | 1.6 | 0.3 | 9020 | 20 | 28 |
| ion | 0.13 | 1 | 6470 | 92 | 3 |
| source | 0.3 | 1 | 4426 | 88 | 6 |
| mass | 1.61 | 0.1 | 3720 | 46 | 4 |
| spectrometry | 0.97 | 0.4 | 900 | 40 | 12 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| ion source mass spectrometry | 1.45 | 0.4 | 3269 | 10 |
