Copper and nickel in ultrafiltered brackish water: labile or non-labile?
Publication: Research - peer-review › Journal article
- Geosciences and Environmental Engineering
- Department of Civil, Environmental and Natural Resources Engineering
- ALS Scandinavia AB
Between 50 and 80% of the ultrafiltered fractions for Ni and Cu could not be detected by the DGT method, using standard procedures. This suggests the presence of complexing ligands for Cu and Ni. Assuming 100% complexation of Ni to fulvic acid ligand gave DGT concentrations similar to ultrafiltered Ni concentrations. The equivalent calculation for Cu indicates that up to 75% of the ultrafiltered Cu fraction is non-labile. The non-labile Cu complexes are proposed to be produced at sea since the fraction increases with decreasing terrestrial influence.
|Number of pages||10|