- Tytuł:
- Gamma radiolytic stability of CyMe4BTBP and the effect of nitric acid
- Autorzy:
-
Schmidt, H.
Wilden, A.
Modolo, G.
Švehla, J.
Grüner, B.
Ekberg, C. - Powiązania:
- https://bibliotekanauki.pl/articles/148662.pdf
- Data publikacji:
- 2015
- Wydawca:
- Instytut Chemii i Techniki Jądrowej
- Tematy:
-
CyMe4BTBP
gamma radiolysis
liquid-liquid extraction
nitric acid
partitioning
protective effect - Opis:
- The highly selective nitrogen donor ligand CyMe4BTBP for An(III) separation by solvent extraction was irradiated in a 60Co γ-source under varying conditions. Organic solutions of 10 mmol/L ligand in 1-octanol were contacted with different concentrations of nitric acid to observe the influence of an aqueous phase during irradiation. In subsequent liquid-liquid extraction experiments, distribution ratios of 241Am and 152Eu were determined. Distribution ratios decreased with increasing absorbed dose when irradiation was performed in the absence of nitric acid. With addition of nitric acid, initial distribution ratios remained constant over the whole examined dose range up to 300 kGy. For qualitative determination of radiolysis products, HPLC-MS measurements were performed. The protective effect of nitric acid was confi rmed, since in samples irradiated with acid contact, no degradation products were observed, but only addition products of the 1-octanol molecule to the CyMe4BTBP molecule.
- Źródło:
-
Nukleonika; 2015, 60, No. 4, part 2; 879-884
0029-5922
1508-5791 - Pojawia się w:
- Nukleonika
- Dostawca treści:
- Biblioteka Nauki
Artykuł