Authors:
E. Makrlík University of West Bohemia Faculty of Applied Sciences Husova 11 306 14 Pilsen Czech Republic

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P. Vaňura Institute of Chemical Technology Department of Analytical Chemistry, Faculty of Chemical Engineering Prague Czech Republic

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P. Selucký Nuclear Research Institute 250 68 Řež Czech Republic

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V. Babain Khlopin Radium Institute, Research and Production Association St. Petersburg Russia

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I. Smirnov Khlopin Radium Institute, Research and Production Association St. Petersburg Russia

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Abstract  

Extraction of microamounts of europium and americium by a phenyltrifluoromethyl sulfone (FS 13) solution of hydrogen dicarbollylcobaltate (H+B) in the presence of N,N′-diethyl-N,N′-diphenyl-2,6-dipicolinamide (EtPhDPA, L) has been investigated. The equilibrium data have been explained assuming that the species HL+, HL2+, ML23+, ML33+ and ML43+ (M3+ = Eu3+, Am3+) are extracted into the organic phase. The values of extraction and stability constants of the cationic complexes in FS 13 saturated with water have been determined. It was found that the stability constants of the corresponding complexes EuLn3+ and AmLn3+, where n = 2, 3, 4 and L is EtPhDPA, in water-saturated FS 13 are comparable.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)