Zobrazeno 1 - 10
of 22
pro vyhledávání: '"V. Crespi Caramella"'
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 261:3-8
The adsorption conditions of uranium, neptunium, thorium, europium on the adsorbers containing the benzylate salts of the 8-hydroxyquinoline (adsorber B), and of 2-methyl- 8-hydroxyquinoline (adsorber R), were prepared, supported onto charcoal and co
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 254:3-7
We studied the preparation of some specific adsorbers capable of isolating and concentrating actinides. Bases of the 8-hydroxyquinoline family, diphosphineamine and tribenzylamine, salted by benzohydroxamic, benzylic or phthalic acid, are able to com
Publikováno v:
The Analyst. 126:399-404
The determination of 226Ra in biological samples, such as milk and grass, was studied. 226Ra analysis of cow’s milk was studied starting from de-fatted milk. The proteins were eliminated by coagulation of the colloidal phase with trichloroacetic ac
Publikováno v:
Applied Radiation and Isotopes. 51:353-357
The separation of small amounts of thorium from large amounts of uranium was achieved by chromatographic columns loaded with ammonium–lanthanum oxalate LAOX, previously prepared and characterized. Good separation yields were obtained; the recovery
Publikováno v:
Applied Radiation and Isotopes. 51:21-26
The cation-exchange properties of mixed ammonium lanthanum oxalate, LAOX, were studied by batch equilibration as a function of the concentration of some cations, such as alkaline earths or ammonium and of some anions and acids. The distribution coeff
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 221:109-113
Batchwise measurement of distribution coefficients of earth alkaline metals, on LERHO, lead rhodizonate supported on charcoal, were studied. The adsorption appears to be related to solubility of barium and lead rhodizonates. Preliminary column experi
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 229:B39-41
Two new simple methods were studied for the analysis of radium in fresh waters by concentration and purification. Both methods are based on the use of an inorganic selective adsorber, namely basic lead rhodizonate, LERHO, and partially reduced tin di
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