Scanning transmission X-ray microscopy as a speciation tool for natural organic molecules
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| 024 | 7 | 0 | |a 10.1524/ract.92.9.711.55004 |2 doi |
| 035 | |a (NATIONALLICENCE)gruyter-10.1524/ract.92.9.711.55004 | ||
| 245 | 0 | 0 | |a Scanning transmission X-ray microscopy as a speciation tool for natural organic molecules |h [Elektronische Daten] |c [Jörg Rothe, Markus Plaschke, Melissa A. Denecke] |
| 520 | 3 | |a A molecular-scale understanding of the basic processes affecting stability and transport behavior of actinide cations, complexes or hydroxide (‘eigencolloid') species is prerequisite to performance assessment of nuclear waste disposal in geological formations. Depending on their functional group chemistry and macromolecular structure, naturally occurring organic molecules (NOM) possess a high tendency towards actinide complexation reactions. However, the compositional and structural heterogeneity of NOM and mixed aggregates with inorganic phases makes speciation by spectromicroscopy techniques highly desirable. The applicability of Scanning Transmission X-ray Microscopy (STXM) as a speciation tool for the characterization of NOM is demonstrated for a multifunctional natural organic acid (chlorogenic acid), Eu(III)-loaded humic acid (HA) aggregates and Eu(III)-oxo/hydroxide/HA hetero-aggregates. It is shown that in situ probing of HA functional group chemistry down to a spatial resolution <100nm (i.e., less than femto-liter sampled volumes) is feasible, at the same time revealing morphological details on NOM aggregates and NOM/mineral associations. | |
| 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 Rothe |D Jörg |4 aut | |
| 700 | 1 | |a Plaschke |D Markus |4 aut | |
| 700 | 1 | |a Denecke |D Melissa A. |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), 711-715 |x 0033-8230 |q 92:9-11/2004<711 |1 2004 |2 92 |o ract | |
| 856 | 4 | 0 | |u https://doi.org/10.1524/ract.92.9.711.55004 |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.92.9.711.55004 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Rothe |D Jörg |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Plaschke |D Markus |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Denecke |D Melissa A. |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), 711-715 |x 0033-8230 |q 92:9-11/2004<711 |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 | ||