Copper complexation in marine and terrestrial rain water.

Jickells, T. D. and Witt, M. (2005) Copper complexation in marine and terrestrial rain water. Atmospheric Environment, 37. pp. 7657-7666. DOI 10.1016/j.atmosenv.2005.01.035

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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.

Item Type: Article
Uncontrolled Keywords: NIL AREP 2005 P IA49
Subjects: 01 - Climate Change and Earth-Ocean Atmosphere Systems
Divisions: 01 - Climate Change and Earth-Ocean Atmosphere Systems
Journal or Publication Title: Atmospheric Environment
Volume: 37
Page Range: pp. 7657-7666
Identification Number: 10.1016/j.atmosenv.2005.01.035
Depositing User: Sarah Humbert
Date Deposited: 12 Aug 2010 13:16
Last Modified: 23 Jul 2013 10:00
URI: http://eprints.esc.cam.ac.uk/id/eprint/1881

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