2011
DOI: 10.1007/s10967-011-1082-2
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Concentration of neptunium from the ground waters of the Karachai Lake contamination area

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Cited by 2 publications
(6 citation statements)
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“…Tananaev [70,71] reported the formation of the species NpO 2 (OH) 3 2-and NpO 2 (OH) 4 3-in alkaline NaOH and TMA-OH solutions based on UV-vis/NIR investigations. Note that the NIR peak at λ = 1020 nm attributed by Tananaev to NpO 2 (OH) 3 2-was later assigned to ternary Np(V)-OH-CO 3 species forming in carbonate bearing NaClO 4 -NaOH [64] and TMA-Cl/OH solutions [67]. In alkaline concentrated CaCl 2 systems, Fellhauer and co-workers [38,39] inner-sphere coordination of three Ca 2+ atoms.…”
Section: Samplementioning
confidence: 97%
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“…Tananaev [70,71] reported the formation of the species NpO 2 (OH) 3 2-and NpO 2 (OH) 4 3-in alkaline NaOH and TMA-OH solutions based on UV-vis/NIR investigations. Note that the NIR peak at λ = 1020 nm attributed by Tananaev to NpO 2 (OH) 3 2-was later assigned to ternary Np(V)-OH-CO 3 species forming in carbonate bearing NaClO 4 -NaOH [64] and TMA-Cl/OH solutions [67]. In alkaline concentrated CaCl 2 systems, Fellhauer and co-workers [38,39] inner-sphere coordination of three Ca 2+ atoms.…”
Section: Samplementioning
confidence: 97%
“…XRD spectra of the neptunium solids were collected with a D8 Advance diffractometer (Bruker) in the 2θ angle range 5-60°. Afterwards, the solid XRD sample was dissolved in 2% HNO 3 and analyzed for neptunium and sodium content by LSC and inductively coupled plasma optical emission spectrometry (ICP-OES, Optima 2000 by Perkin Elmer), respectively.…”
Section: Solid Phase Characterizationmentioning
confidence: 99%
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“…Dentre eles, o carvão ativado, proveniente de reatores nucleares, é um dos resíduos nucleares mais problemáticos já que são encontrados em grandes quantidades e contém atividades elevadas de produtos de ativação e fissão (Tavcar, 2007 Np em amostras ambientais requer uma alta eficiência na separação e uma técnica de medida sensível (Diodati e Sartori, 2007;Salminen, 2009; Lehto e Hou, 2011;Novikov et al, 2011).…”
Section: Caracterizaçãounclassified
“…Np em amostras ambientais requer uma alta eficiência na separação e uma técnica de medida sensível (Diodati e Sartori, 2007;Salminen, 2009;Lehto e Hou, 2011;Novikov et al, 2011).…”
Section: Reator De Pesquisa -Iea-r1unclassified