Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 246: Issue 3
The Study of Americium, Yttrium and Lead Complexation by Humic Acids of Different Origin
Authors:
A. Paulenová Comenius University Department of Nuclear Chemistry, Faculty of Natural Sciences 842 15 Bratislava Slovak Republic

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P. Rajec Comenius University Department of Nuclear Chemistry, Faculty of Natural Sciences 842 15 Bratislava Slovak Republic

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J. Kandráč Comenius University Department of Analytical Chemistry, Faculty of Natural Sciences 842 15 Bratislava Slovak Republic

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G. Sasköiová Comenius University Department of Nuclear Chemistry, Faculty of Natural Sciences 842 15 Bratislava Slovak Republic

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E. Tóthová Comenius University Department of Nuclear Chemistry, Faculty of Natural Sciences 842 15 Bratislava Slovak Republic

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P. Bartoš Comenius University Department of Nuclear Chemistry, Faculty of Natural Sciences 842 15 Bratislava Slovak Republic

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V. Švec Comenius University Department of Nuclear Chemistry, Faculty of Natural Sciences 842 15 Bratislava Slovak Republic

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R. Góra Comenius University Department of Analytical Chemistry, Faculty of Natural Sciences 842 15 Bratislava Slovak Republic

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Pages:
617–622
Online Publication Date:
01 Nov 2004
Publication Date:
17 Dec 2000
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1006706925160
Restricted access

Abstract  

Complexation equilibrium of metals by three humic acids of different origin with ultrafiltration method was investigated at pH 4 a 5 and ionic strength I = 0.1M NaClO4. Commercial (Aldrich) and two original humic acids (peat and soil, obtained by six step isolation process from the material from Trnava county, close to the NPP Jaslovské Bohunice) were used in this study. For the evaluation of the results, the model of metal ion charge neutralization upon humic acid functional group proposed by the Kim and Czerwinski was used. Complexation constants were calculated using the terms of this model (operational concentration, loading capacity). The values of log = 5.39±0.16 for yttrium, 6.15±0.16 for americium and 5.20±0.08 for lead were found. Correlation of free metal concentration and ratio of molar fraction of complexing functional groups confirms the validity of charge neutralisation model for metal and polyelectrolyte complexation study.

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Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation		 1968
Volumes
per Year		 1
Issues
per Year		 12
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)

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