Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Wagiha H. Mahmoud"'
Publikováno v:
Radiochimica Acta.
The hydrothermal preparation of active MnO2 via KMnO4 and MnSO4.H2O as inorganic forerunners is demonstrated, and it is evaluated as an adsorbent for the 99Mo produced by 235U fission. The structure and morphology of MnO2 were distinguished using var
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 328:815-824
Solvent impregnated silica gel material was prepared for thorium recovery from its aqueous nitrate solutions using the neutral phosphine oxide extractant, cyanex-923 in toluene. This was achieved by adsorption of the extractant onto the solid phase i
Publikováno v:
Journal of Analytical Chemistry. 76:322-329
A new reagent, 1,4-dihydroxyanthraquinone (1,4-DHA), is described for the spectrophotometric determination of thorium(IV). Optimization of the formed thorium−1,4-DHA complex was performed by studying several parameters such as methanol concentratio
Publikováno v:
Journal of Rare Earths. 38:299-305
Kieselguhr for chromatography was loaded with Cyanex 572 extractant and characterized using X-ray diffraction (XRF), scanning electron microscopy (SEM), Fourier transform infra-red (FT-IR), and thermal analysis. Sorption of some heavy lanthanides tog
Publikováno v:
International Journal of Environmental Analytical Chemistry. 100:1763-1776
In this article waste rubber powder (WR) was converted into devulcanised waste rubber (DWR) by mechanochemical method through internal mixer in the presence of various ratios of chemical curatives....
Publikováno v:
Journal of Rare Earths. 36:1342-1350
Extraction of Y(III) and Dy(III) from hydrochloric and nitric acids by Cy-572 in kerosene was studied. The factors affecting the extraction were separately investigated. The stoichiometry of the extracted species was deduced on the basis of slope ana
Publikováno v:
SN Applied Sciences. 1
This work concerned with the extraction of Th(IV) from aqueous solutions using natural cassitrite adsorbent natural tin oxide mineral (SnO2). The achieved maximum Th(IV) adsorption efficiency (99.2%) depends mainly on some effective parameters such a
Publikováno v:
CLEAN – Soil, Air, Water. 48:2000348
Publikováno v:
Electroanalysis. 22:2453-2459
A novel macrocyclic calix[4]arene derivative was examined as an ionophore for ion-selective polymeric membrane electrode toward Cu+2 ions. The sensor showed a near Nernstian response for Cu(II) ions over a concentration range from 8.1×10−6 to 1.0
Publikováno v:
Analytical Sciences. 22:877-881
Two novel potentiometric sensors that are highly selective to Hg2+ ions are described. These are based on the use of 5,5'-dithio-bis(2-nitrobenzoic acid) (DTNB) and tricyclazole (TCZ) as neutral carriers in plasticized poly(vinyl chloride) membranes.