Table 2.
Results of FlowFFF analysis: Fe concentration and pH of the samples, Fe and UV–Vis recovery from the FlowFFF analysis, and molar mass (MM) at the mode (peak maximum) of the Fe signala.
| Feb [μmol L− 1] |
DOC [μmol L− 1] |
pH | Recovery UV–Vis % |
Recovery Fe % |
MMc [g mol− 1] |
|
|---|---|---|---|---|---|---|
| Peat-bog draining creek | ||||||
| CB_0 | 87.9 ± 4.5 | 12,060 ± 600 | 5.9 | 84 | 93 | 3320 ± 100 |
| CB_1 | 22.1 ± 1.1 | 2450 ± 120 | 5.3 | 46 | 102 | 2420 ± 90 |
| CB_2 | 29.0 ± 1.4 | 3730 ± 260 | 6.5 | 38 | 101 | 2810 ± 100 |
| Suwannee River NOM | ||||||
| SR_0 | 17.5 ± 0.9 | 2500 ± 130 | 5.5 | 82 | 105 | 3450 ± 110 |
| SR_1 | 19.5 ± 0.9 | 2090 ± 100 | 5.2 | 60 | 100 | 2120 ± 100 |
| SR_2 | 17.3 ± 0.9 | 1900 ± 100 | 4.5 | 51 | 108 | 2580 ± 90 |