Table 3.
Matrix of Plackett–Burman experimental design
| Std. order | X1 | X2 | X3 | X4 | X5 | X6 | X7 | X8 | X9 | X10 | X11 | X12 | X13 | X14 | X15 | X16 | X17 | X18 | X19 | CPT yield (µg/l) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 7 | 7 | 0.5 | 2 | 0.1 | 4 | 10 | 4 | 10 | 2 | 0.4 | 8 | 0.1 | 1 | 4 | 0.4 | 1 | 15 | 0.1 | 22.4 |
| 2 | 7 | 16 | 0.5 | 2 | 0.1 | 4 | 4 | 10 | 4 | 4 | 0.1 | 8 | 0.4 | 1 | 1 | 0.4 | 4 | 2 | 0.4 | 96.8 |
| 3 | 7 | 16 | 0.5 | 10 | 0.4 | 4 | 4 | 4 | 10 | 2 | 0.1 | 2 | 0.4 | 4 | 1 | 0.1 | 4 | 15 | 0.1 | 87.2 |
| 4 | 7 | 16 | 10 | 10 | 0.1 | 4 | 4 | 4 | 4 | 4 | 0.4 | 2 | 0.1 | 4 | 4 | 0.1 | 1 | 15 | 0.4 | 127.6 |
| 5 | 7 | 16 | 10 | 10 | 0.4 | 8 | 4 | 4 | 4 | 2 | 0.1 | 8 | 0.1 | 1 | 4 | 0.4 | 1 | 2 | 0.4 | 72.4 |
| 6 | 2 | 16 | 10 | 10 | 0.1 | 8 | 10 | 4 | 4 | 2 | 0.4 | 2 | 0.4 | 1 | 1 | 0.4 | 4 | 2 | 0.1 | 45.6 |
| 7 | 7 | 7 | 10 | 10 | 0.1 | 8 | 10 | 10 | 4 | 2 | 0.1 | 8 | 0.1 | 4 | 1 | 0.1 | 4 | 15 | 0.1 | 90 |
| 8 | 2 | 16 | 10 | 2 | 0.1 | 8 | 10 | 10 | 10 | 2 | 0.1 | 2 | 0.4 | 1 | 4 | 0.1 | 1 | 15 | 0.4 | 25.2 |
| 9 | 7 | 7 | 0.5 | 10 | 0.1 | 8 | 10 | 10 | 10 | 4 | 0.1 | 2 | 0.1 | 4 | 1 | 0.4 | 1 | 2 | 0.4 | 73.6 |
| 10 | 7 | 16 | 10 | 2 | 0.4 | 4 | 10 | 10 | 10 | 4 | 0.1 | 2 | 0.1 | 1 | 4 | 0.1 | 4 | 2 | 0.1 | 87.2 |
| 11 | 2 | 16 | 0.5 | 10 | 0.4 | 8 | 4 | 10 | 10 | 4 | 0.4 | 2 | 0.1 | 1 | 1 | 0.4 | 1 | 15 | 0.1 | 36.4 |
| 12 | 2 | 7 | 10 | 10 | 0.4 | 4 | 10 | 4 | 10 | 4 | 0.4 | 8 | 0.1 | 1 | 1 | 0.1 | 4 | 2 | 0.4 | 44.8 |
| 13 | 7 | 7 | 10 | 2 | 0.4 | 8 | 4 | 10 | 4 | 4 | 0.4 | 8 | 0.4 | 1 | 1 | 0.1 | 1 | 15 | 0.1 | 85.6 |
| 14 | 7 | 16 | 0.5 | 2 | 0.4 | 8 | 10 | 4 | 10 | 2 | 0.4 | 8 | 0.4 | 4 | 1 | 0.1 | 1 | 2 | 0.4 | 45.6 |
| 15 | 2 | 16 | 0.5 | 10 | 0.1 | 4 | 10 | 10 | 4 | 4 | 0.4 | 8 | 0.4 | 4 | 4 | 0.1 | 1 | 2 | 0.1 | 36.4 |
| 16 | 2 | 7 | 10 | 10 | 0.4 | 4 | 4 | 10 | 10 | 2 | 0.1 | 8 | 0.4 | 4 | 4 | 0.4 | 1 | 2 | 0.1 | 20.4 |
| 17 | 7 | 7 | 10 | 2 | 0.1 | 8 | 4 | 4 | 10 | 4 | 0.4 | 2 | 0.4 | 4 | 4 | 0.4 | 4 | 2 | 0.1 | 90 |
| 18 | 2 | 16 | 0.5 | 2 | 0.4 | 8 | 10 | 4 | 4 | 4 | 0.1 | 8 | 0.1 | 4 | 4 | 0.4 | 4 | 15 | 0.1 | 36.4 |
| 19 | 7 | 7 | 0.5 | 10 | 0.4 | 4 | 10 | 10 | 4 | 2 | 0.4 | 2 | 0.4 | 1 | 4 | 0.4 | 4 | 15 | 0.4 | 45.6 |
| 20 | 2 | 16 | 10 | 2 | 0.1 | 4 | 4 | 10 | 10 | 2 | 0.4 | 8 | 0.1 | 4 | 1 | 0.4 | 4 | 15 | 0.4 | 44.8 |
| 21 | 2 | 7 | 0.5 | 10 | 0.1 | 8 | 4 | 4 | 10 | 4 | 0.1 | 8 | 0.4 | 1 | 4 | 0.1 | 4 | 15 | 0.4 | 44.8 |
| 22 | 2 | 7 | 10 | 2 | 0.4 | 4 | 10 | 4 | 4 | 4 | 0.1 | 2 | 0.4 | 4 | 1 | 0.4 | 1 | 15 | 0.4 | 16.8 |
| 23 | 2 | 7 | 0.5 | 2 | 0.4 | 8 | 4 | 10 | 4 | 2 | 0.4 | 2 | 0.1 | 4 | 4 | 0.1 | 4 | 2 | 0.4 | 22.4 |
| 24 | 2 | 7 | 0.5 | 2 | 0.1 | 4 | 4 | 4 | 4 | 2 | 0.1 | 2 | 0.1 | 1 | 1 | 0.1 | 1 | 2 | 0.1 | 20.4 |