Modeling of the complex formation of metal ions with humic acids
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| 024 | 7 | 0 | |a 10.1524/ract.92.9.559.54996 |2 doi |
| 035 | |a (NATIONALLICENCE)gruyter-10.1524/ract.92.9.559.54996 | ||
| 245 | 0 | 0 | |a Modeling of the complex formation of metal ions with humic acids |h [Elektronische Daten] |c [Osamu Tochiyama, Yuichi Niibori, Kouichi Tanaka, Takumi Kubota, Hirofumi Yoshino, Akira Kirishima, Budi Setiawan] |
| 520 | 3 | |a Based on the conceptual model of cation-humic interactions considering the heterogeneous composition and polyelectrolyte nature of humic acids, the description of the interaction by the expression, log Kapp= log K - m log [M]+ a log α - b log [Na+], is proposed, where Kapp=[M··(zR)]/([M][R]), [M··(zR)] is the concentration of the cation bound to the humic acid, [M] is the concentration of the free cation with charge z, and [R] is the concentration of the free anionic sites of the humic acid, [R]=(CR-z[M··(zR)])α (CR is a total concentration of proton exchanging sites and α is a degree of dissociation). log K, m, a and b are the constant parameters depending on the cation and the humic acid. The expression is successfully applied to the experimental results on the complex formation (or protonation) of humate and polyacrylate (a homogeneous polymeric weak acid) with H+, NpO2+, Eu3+, Ca2+, Fe2+ and Fe3+ obtained under the condition where hydrolysis of cations and saturation of the reacting sites can be neglected. | |
| 540 | |a © 2004 Oldenbourg Wissenschaftsverlag GmbH | ||
| 690 | 7 | |a Laboratory techniques, experiments |2 nationallicence | |
| 690 | 7 | |a Analytical chemistry |2 nationallicence | |
| 690 | 7 | |a Inorganic chemistry |2 nationallicence | |
| 700 | 1 | |a Tochiyama |D Osamu |4 aut | |
| 700 | 1 | |a Niibori |D Yuichi |4 aut | |
| 700 | 1 | |a Tanaka |D Kouichi |4 aut | |
| 700 | 1 | |a Kubota |D Takumi |4 aut | |
| 700 | 1 | |a Yoshino |D Hirofumi |4 aut | |
| 700 | 1 | |a Kirishima |D Akira |4 aut | |
| 700 | 1 | |a Setiawan |D Budi |4 aut | |
| 773 | 0 | |t Radiochimica Acta/International journal for chemical aspects of nuclear science and technology |d Oldenbourg Wissenschaftsverlag GmbH |g 92/9-11/2004(2004-11-01), 559-565 |x 0033-8230 |q 92:9-11/2004<559 |1 2004 |2 92 |o ract | |
| 856 | 4 | 0 | |u https://doi.org/10.1524/ract.92.9.559.54996 |q text/html |z Onlinezugriff via DOI |
| 908 | |D 1 |a research article |2 jats | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1524/ract.92.9.559.54996 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Tochiyama |D Osamu |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Niibori |D Yuichi |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Tanaka |D Kouichi |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Kubota |D Takumi |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Yoshino |D Hirofumi |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Kirishima |D Akira |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Setiawan |D Budi |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Radiochimica Acta/International journal for chemical aspects of nuclear science and technology |d Oldenbourg Wissenschaftsverlag GmbH |g 92/9-11/2004(2004-11-01), 559-565 |x 0033-8230 |q 92:9-11/2004<559 |1 2004 |2 92 |o ract | ||
| 900 | 7 | |b CC0 |u http://creativecommons.org/publicdomain/zero/1.0 |2 nationallicence | |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-gruyter | ||