Time (min) | [Ag] (ppm) | Recovery % | pH |
0 | 55 | 0 | 8 |
5 | 43 | 26.67 | 8.6 |
10 | 33 | 48.88 | 9.1 |
15 | 9 | 80 | 10.3 |
20 | 0.2 | 99.6 | 11.1 |