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Dissolved organic matter (<jats:styled-content style=\"fixed-case\">DOM<\/jats:styled-content>) can play an important role in the mobilization of metal ions due to complexation. In this study, we investigate the complexation behavior of humic acid (<jats:styled-content style=\"fixed-case\">HA<\/jats:styled-content>) as a model substance for <jats:styled-content style=\"fixed-case\">DOM<\/jats:styled-content> and its influence on the migration of europium as homologue for the actinide americium and uranium as the principal component of nuclear fuel. As speciation technique, capillary electrophoresis (<jats:styled-content style=\"fixed-case\">CE<\/jats:styled-content>) was hyphenated with inductively coupled plasma mass spectrometry (<jats:styled-content style=\"fixed-case\">ICP<\/jats:styled-content>\u2010<jats:styled-content style=\"fixed-case\">MS<\/jats:styled-content>). For the study, 0.5 mg\u00b7L<jats:sup>\u22121<\/jats:sup> of the metals and 25 mg\u00b7L<jats:sup>\u22121<\/jats:sup> of (purified Aldrich) <jats:styled-content style=\"fixed-case\">HA<\/jats:styled-content> and an aqueous solution sodium\u2010perchlorate with an ionic strength of 10 mM at pH 5 were used. <jats:styled-content style=\"fixed-case\">CE<\/jats:styled-content>\u2013<jats:styled-content style=\"fixed-case\">ICP<\/jats:styled-content>\u2010<jats:styled-content style=\"fixed-case\">MS<\/jats:styled-content> clearly shows the different speciation of the triple positively charged europium and the double positively charged uranyl cation with <jats:styled-content style=\"fixed-case\">HA<\/jats:styled-content>.<\/jats:p>","DOI":"10.1002\/elps.201100652","type":"journal-article","created":{"date-parts":[[2012,5,30]],"date-time":"2012-05-30T14:32:16Z","timestamp":1338388336000},"page":"1482-1487","source":"Crossref","is-referenced-by-count":40,"title":["Complexation of europium and uranium by humic acids analyzed by capillary electrophoresis\u2010inductively coupled plasma mass spectrometry"],"prefix":"10.1002","volume":"33","author":[{"given":"Christina","family":"M\u00f6ser","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ralf","family":"Kautenburger","sequence":"additional","affiliation":[{"name":"Institute of Inorganic and Analytical Chemistry and Radiochemistry Saarland University  Saarbr\u00fccken Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Horst","family":"Philipp Beck","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2012,5,30]]},"reference":[{"key":"e_1_2_3_2_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-94-009-4077-2"},{"key":"e_1_2_3_3_1","doi-asserted-by":"publisher","DOI":"10.1038\/16231"},{"key":"e_1_2_3_4_1","doi-asserted-by":"crossref","first-page":"167","DOI":"10.1524\/ract.1999.86.34.167","volume":"86","author":"Shin H. 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