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Interaction of Strontium and Europium with an Aquatic Fulvic Acid Studied by Ultrafiltration and lon Exchange Techniques
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- Nordén, Maria (author)
- Linköpings universitet,Tema vatten i natur och samhälle,Filosofiska fakulteten
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- Ephraim, James (author)
- Linköpings universitet,Tema vatten i natur och samhälle,Filosofiska fakulteten
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- Allard, Bert (author)
- Linköpings universitet,Tema vatten i natur och samhälle,Filosofiska fakulteten
- (creator_code:org_t)
- Berlin Heidelberg New York : Springer, 1991
- 1991
- English.
- In: Humic substances in the aquatic and terrestrial environment : proceedings of an international symposium, Linköping, Sweden, August 21-23, 1989. - Berlin Heidelberg New York : Springer. - 3540537023 ; , s. 297-303
- Book chapter (peer-reviewed)
Abstract
Subject headings
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- The complexation of an aquatic fulvic acid, FA, with Sr2+ and Eu3+ was studied using an ultrafiltration technique and an ion exchange distribution method. The total amount of bound metal (Sr2+ and Eu3+) was measured as a function of pH at low meta! concentrations (trace levels) and constant FA concentration. In the Sr-FA system the bound meta! fraction increased slightly with pH, and the values obtained from the two experimental techniques were comparable. For Eu-FA, according to the ultrafiltration data, the fraction of bound meta! ion was relatively insensitive to pH changes, whereas values from the ion exchange measurements showed a strong and positive dependence on pH. The results are discussed in the light of possible intrinsic problems of the two methods.
Subject headings
- LANTBRUKSVETENSKAPER -- Annan lantbruksvetenskap -- Miljö- och naturvårdsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Other Agricultural Sciences -- Environmental Sciences related to Agriculture and Land-use (hsv//eng)
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- Water Chemistry
Publication and Content Type
- ref (subject category)
- kap (subject category)
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