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Titolo:
A rapid method for the separation of Po-210 from Pb-210 by TIOA extraction
Autore:
Chen, QJ; Hou, XL; Dahlgaard, H; Nielsen, SP; Aarkrog, A;
Indirizzi:
Riso Natl Lab, Dept Nucl Safety Res, DK-4000 Roskilde, Denmark Riso Natl Lab Roskilde Denmark DK-4000 ty Res, DK-4000 Roskilde, Denmark
Titolo Testata:
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
fascicolo: 3, volume: 249, anno: 2001,
pagine: 587 - 593
SICI:
0236-5731(200109)249:3<587:ARMFTS>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
ENVIRONMENTAL MATERIALS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
13
Recensione:
Indirizzi per estratti:
Indirizzo: Chen, QJ Riso Natl Lab, Dept Nucl Safety Res, DK-4000 Roskilde, Denmark Riso Natl Lab Roskilde Denmark DK-4000 K-4000 Roskilde, Denmark
Citazione:
Q.J. Chen et al., "A rapid method for the separation of Po-210 from Pb-210 by TIOA extraction", J RAD NUCL, 249(3), 2001, pp. 587-593

Abstract

A rapid method for the separation of Po-210 from Pb-210 was developed utilizing extraction of triisooctylamine (TIOA)/xylene in HCl+H2O2, medium. Polonium in the form of PoCl62- was extracted into TIOA phase and Pb-210 remains in the aqueous phase. Lead-210 was determined by alpha -counting of its granddaughter. Po-210 ingrown from Pb-210 for some period of time. Distribution of Po-210 and Pb-210 in TIOA and aqueous phases was investigated in various concentrations of HCl media. Hydrogen peroxide was used to further decompose organic matter and to remove sulfur to prevent its deposition on the silver disc. The improved procedure resulted in a good chemical yield (80-95%) and a good alpha -resolution.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/11/20 alle ore 14:36:18