Figure 2

Adsorption of EDTA and the siderophores DFOB (data from [21]) and DFOD onto goethite at pH 6 as a function of SDS concentration (0.01 M NaClO ₄ , 7 g/L goethite, 24 h equilibration time). The total ligand concentration was 80 µM. Error bars indicate the standard deviation of three replicates.