Interaction of Strontium and Europium with an Aquatic Fulvic Acid Studied by Ultrafiltration and lon Exchange Techniques
1991 (English)In: Humic substances in the aquatic and terrestrial environment : proceedings of an international symposium, Linköping, Sweden, August 21-23, 1989 / [ed] B. Allard, H. Borén and A. Grimvall, Berlin Heidelberg New York: Springer, 1991, 297-303 p.Chapter in book (Refereed)
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.
Place, publisher, year, edition, pages
Berlin Heidelberg New York: Springer, 1991. 297-303 p.
, Lecture Notes in Earth Science, ISSN 0930-0317 ; 33
Environmental Sciences related to Agriculture and Land-use Chemical Sciences
IdentifiersURN: urn:nbn:se:liu:diva-112202ISBN: 3-540-53702-3OAI: oai:DiVA.org:liu-112202DiVA: diva2:764111