Copper complexation in marine and terrestrial rain water

Witt, M and Jickells, T (2005) Copper complexation in marine and terrestrial rain water. Atmospheric Environment, 39 (40). pp. 7657-7666.

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Abstract

The complexation of copper was studied in rainwater collected in Norwich, UK, and during Atlantic and Indian Ocean cruises. The complexation was measured with Chelex resin, Sep-Pak columns and adsorptive cathodic stripping voltammetry with tropolone as a competing ligand. Strong organic complexation was observed in semi-urban and marine rain samples with conditional stability constants between 1011 and 1014. Model solutions of copper and humic matter found organic complexes of a similar strength to those observed in the rain samples suggesting humic material as a potential ligand. A large proportion of the copper in the rains was associated with strong organic complexes over the pH range 4-8 in both filtered and unfiltered rain samples suggesting organic complexation is an important process both in the atmosphere and on arrival to oceans.

Item Type: Article
Faculty \ School: Faculty of Science > School of Environmental Sciences
Related URLs:
Depositing User: Rosie Cullington
Date Deposited: 10 Jun 2011 13:08
Last Modified: 21 Apr 2020 20:11
URI: https://ueaeprints.uea.ac.uk/id/eprint/32239
DOI: 10.1016/j.atmosenv.2005.01.035

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