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Isotopic fractionation during diffusion of transition metal ions in solution
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.ORCID iD: 0000-0003-4505-4590
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2004 (English)In: Analytical Chemistry, ISSN 0003-2700, E-ISSN 1520-6882, Vol. 76, no 7, p. 2148-2151Article in journal (Refereed) Published
Abstract [en]

Isotope ratios and elemental concentrations were measured in aqueous solutions sampled at varying distances from sources of Fe or Zn ions. The measurements reveal fractionation of isotopes resulting from pure diffusion in solution. Our data demonstrate that diffusion alone can cause changes in 56Fe/54Fe and 66Zn/64Zn isotope ratios in excess of -0.3”. These findings thus confirm previous suspicions that transport processes contribute to observed variations in isotopic compositions. Diffusion must therefore be considered when attempting to make inferences from isotope measurements on samples originating from aqueous systems where concentration gradients may develop.

Place, publisher, year, edition, pages
2004. Vol. 76, no 7, p. 2148-2151
National Category
Geochemistry
Research subject
Applied Geology
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URN: urn:nbn:se:ltu:diva-9816DOI: 10.1021/ac035296gISI: 000220618400056Scopus ID: 2-s2.0-1842580806Local ID: 880b6fc0-7b07-11db-8824-000ea68e967bOAI: oai:DiVA.org:ltu-9816DiVA, id: diva2:982754
Note
Validerad; 2004; 20061123 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Rodushkin, IliaAndren, HenrikMalinovskiy, DmitryBaxter, Douglas

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