| after washing the membranes | 4 | temporal |
| specifically | 4 | manner |
| from millipore | 3 | location |
| membrane → be → obtained | 20 |
| membrane → be → performed | 9 |
| membrane → be → extracted | 4 |
| negative | neutral | positive |
| 0.074 | 0.830 | 0.096 |
| Raw frequency | 33 |
| Normalized frequency | 0.454 |
| Modifier score | 1.000 |
| Perplexity | 132.529 |