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Net charges of Zn(II)- and Fe(III)-phytosiderophores at pH 7.0 as calculated from migration distances in high-voltage paper electrophoresis
| Ligand | Zn(II) | Fe(III) |
|---|---|---|
| MA | −0.79 | −1.10 |
| eHMA | −0.84 | −1.18 |
| PSII | −0.75 | −1.15 |
| NA | −0.78 | 0 |
Net charges were calibrated from migration distances of known Zn(II)- and Fe(III)-chelates as described in “Materials and Methods” and in Figure 1.
