Table 3.
Results from the microFIA system of the different samples compared with the results from UV–Vis method
| FIA | UV–Vis | ||||
|---|---|---|---|---|---|
| [Fe(III)] added (mg·L−1) |
Average (mg·L−1) |
SD | Average (mg·L−1) |
SD | |
| Bioleaching reactor | - | 636 | 8 | 713.8 | 1.1 |
| - | 3157 | 11 | 2962 | 70 | |
| - | 2115 | 60 | 2120 | 5 | |
| Water from lake in “Parc de l’agulla” | 300 | 377 | 6 | 249 | 4 |
| 600 | 608 | 8 | 518.7 | 0.6 | |
| 1000 | 915 | 24 | 834.1 | 1.6 | |
| Mineral medium | 1050 | 1042 | 11 | 924.0 | 0.6 |
| 2000 | 1941 | 60 | 1930 | 4 | |
| 4050 | 4289 | 40 | 4211 | 13 | |
| Leachate from dissolved mobile batteries in acid | 500 | 428 | 6 | 402 | 4 |
| 2500 | 2267 | 90 | 2312 | 24 | |
| 3500 | 3444 | 40 | 3340 | 6 | |