solid extractants
Recently Published Documents





InterConf ◽  
2021 ◽  
pp. 334-352
Serghey Shapovalov ◽  
Alla Krasnoperova ◽  
Galina Yukhno ◽  
Natalia Efimova

The conditions for the formation of metal complexes (aluminium, radionuclides) in solutions are considered. The properties of solid extractants (TVEX) and their application for the selective extraction of metals and radionuclides are discussed. The extraction of 90Sr, 90Y, 137Cs and U(VI) radionuclides from aqueous TVEX solutions impregnated with calixarenes C45 and CIP67 has been studied. The use of surfactants in combination with OAR (PA) is a typical example of the fact that the analytical capabilities of even well-known reagents are far from exhausted, and the use of functionalized reagents can significantly improve the basic analytical characteristics of metal detection.

Metals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1390
Fabiola Monroy-Guzman ◽  
Celia del Carmen De la Cruz Barba ◽  
Edgar Jaime Salinas ◽  
Vicente Garibay-Feblés ◽  
Tobias Noel Nava Entzana

Bis(2-ethylhexyl)phosphoric acid (HDEHP) is frequently used as an extractant in the separation and recovery of lanthanides by solvent extraction and extraction chromatography, where HDEHP (stationary phase) is fixed on an inert support and the mobile phase is an aqueous solution. Because the results of extraction chromatography strongly depend on the support material, in this study, we aim to prepare solid extractants (extraction chromatography materials) with different inorganic supports impregnated with HDEHP for the adsorption of Gd and Tb from HCl solutions, putting emphasis on the effect of the supports on the solid extractant behavior. Gd and Tb partition data were determined in HCl solutions from the prepared extraction chromatography materials using elution analysis. Solid extractants were characterized by X-Ray diffraction, electron microscopy, and infrared spectroscopy in order to determine their properties and to explain their extraction behavior. The characterization of the solid extractants showed a heterogeneous distribution of the HDEHP on the surfaces of the different supports studied. The irregular shape of the support particles produces discontinuous and heterogenous silanization and HDEHP coatings on the support surface, affecting the retention performance of the solid extractant and the chromatographic resolution.

Zh.Z. Kairnassova ◽  
N.N. Nurmukhanbetova ◽  
D.T. Kazyakhmetova ◽  
Z.Sh. Тleuova ◽  

2010 ◽  
Vol 286 (3) ◽  
pp. 729-734 ◽  
Filip Kužel ◽  
Petra Staffová ◽  
Irena Špendlíková ◽  
Jan John ◽  
Ferdinand Šebesta

2010 ◽  
Vol 65 (1) ◽  
pp. 12-16 ◽  
O. B. Mokhodoeva ◽  
G. V. Myasoedova ◽  
I. V. Kubrakova ◽  
A. V. Nikulin ◽  
O. I. Artyushin ◽  

2008 ◽  
Vol 50 (5) ◽  
pp. 482-485 ◽  
G. V. Myasoedova ◽  
E. A. Zakharchenko ◽  
N. P. Molochnikova ◽  
B. F. Myasoedov

2007 ◽  
Vol 42 (4) ◽  
pp. 769-775 ◽  
H. Miloudi ◽  
A. Boos ◽  
D. Bouazza ◽  
T. Ali-Dahmane ◽  
A. Tayeb ◽  

Sign in / Sign up

Export Citation Format

Share Document