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SDBS recovery from river water samples (100 mL, Warta river, Poznań)
| Sample | Amount of SDBS added (μg) | Absorbance | Determined SDBS content (μg 100 mL−1 of sample) | Recovery (%) |
|---|---|---|---|---|
| 1 | 0 | 0.1976 | 5.22 | – |
| 2 | 5 | 0.3295 | 9.57 | 93.7 |
| 3 | 10 | 0.4718 | 14.27 | 93.8 |
| 4 | 15 | 0.6346 | 19.64 | 97.2 |
| 5 | 20 | 0.7782 | 24.28 | 96.7 |
| 6 | 30 | 1.0389 | 32.98 | 93.7 |
| 7 | 40 | 1.3926 | 44.95 | 98.8 |
