Time (min) | [Ag] (ppm) | Recovery % | pH |
0 | 45 | 0 | 8 |
5 | 36 | 20 | 9.2 |
10 | 28 | 37.78 | 9.5 |
15 | 10 | 77.78 | 10.2 |
20 | 0.5 | 98.88 | 10.7 |