Table 1 Experimental design by response surface methodology to obtine optimized value of studied parameters
No. | pH | Time (min) | NaCl (µL)a | AgNPs (mL) | Δ Absorbance |
|---|---|---|---|---|---|
1 | 7 | 10 | 10 | 1.00 | 0.58 |
2 | 7 | 10 | 30 | 1.25 | 0.92 |
3 | 7 | 5 | 30 | 1.50 | 0.98 |
4 | 2 | 10 | 30 | 1.50 | 1.26 |
5 | 2 | 15 | 30 | 1.25 | -b |
6 | 7 | 15 | 10 | 1.25 | 1.04 |
7 | 7 | 5 | 50 | 1.25 | 0.81 |
8 | 7 | 10 | 10 | 1.50 | 1.82 |
9 | 7 | 15 | 50 | 1.25 | 1.50 |
10 | 7 | 10 | 30 | 1.25 | 0.99 |
11 | 7 | 5 | 30 | 1.00 | 0.63 |
12 | 12 | 10 | 30 | 1.50 | 0.41 |
13 | 12 | 5 | 30 | 1.25 | 0.28 |
14 | 7 | 10 | 30 | 1.25 | 0.93 |
15 | 2 | 5 | 30 | 1.25 | 0.31 |
16 | 12 | 10 | 10 | 1.25 | 0.16 |
17 | 7 | 15 | 30 | 1.00 | 1.00 |
18 | 7 | 15 | 30 | 1.50 | 1.97 |
19 | 7 | 10 | 50 | 1.00 | -b |
20 | 2 | 10 | 30 | 1.00 | 0.76 |
21 | 2 | 10 | 50 | 1.25 | 0.92 |
22 | 12 | 10 | 50 | 1.25 | 0.06 |
23 | 12 | 10 | 30 | 1.00 | 0.23 |
24 | 2 | 10 | 10 | 1.25 | 1.22 |
25 | 7 | 5 | 10 | 1.25 | 0.49 |
26 | 7 | 10 | 50 | 1.50 | 0.57 |
27 | 12 | 15 | 30 | 1.25 | 0.40 |