Results 151 to 160 of about 6,347 (227)

The uptake of caesium and strontium radioisotopes onto clays

open access: closedJournal of Materials Chemistry, 2000
Montmorillonite and illite clays have been examined for their ability to take up caesium and strontium radioisotopes from solution. Uptakes onto near homoionic Na, K, NH4, Mg, Ca, and Sr clays have been assessed by the construction of ion exchange isotherms. Effects of changes in concentration (total normality) and temperature have been assessed. Where
Allen Dyer, J. K. K. Chow, I. M. Umar
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Determination of strontium radioisotopes in soils

open access: closedFresenius' Journal of Analytical Chemistry, 1991
A method is proposed for determination of radiostrontium in soils which is based on selective strontium separation by liquid-liquid extraction with dicyclohexano-18-crown-6 in chloroform, loading of the extract on a thin-layer plate and TLC separation of strontium and yttrium radioisotopes using a circular procedure.
V. A. Ryabukhin   +4 more
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Uptake of cesium and strontium radioisotopes onto pillared clays

open access: closedJournal of Radioanalytical and Nuclear Chemistry, 1999
Abstract  Pillared clays were characterised by thermal analysis and small-angle X-ray scattering. They were then examined for their ability to take up137Cs and90Sr/90Y isotopes as a function of concentration and competing cations (Na+, K+, NH4 +, Ca2+, Mg2+) in the concentration range 10−1 to 10−4 M. The radioisotope uptakes were quantified byK d (ml/g)
A. Dyer   +2 more
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Zirconium phosphates deposited on the granulated silica gel as adsorbents for the extraction of cesium, strontium radioisotope ions

open access: closedSeparation Science and Technology, 2021
A preliminary study of a lot of adsorbents for the adsorption of radioisotopes of cesium, strontium and yttrium from the drain waters of the Chernobyl nuclear power plant showed that granular zirco...
Zhuravlev I.Z.   +2 more
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EVALUATION OF CUPRIMINE® AND SYPRINE® FOR DECORPORATION OF RADIOISOTOPES OF CESIUM, COBALT, IRIDIUM AND STRONTIUM

open access: closedHealth Physics, 2011
Cuprimine® and Syprine® are therapeutics approved by the USFDA to treat copper overload in Wilson Disease (a genetic defect in copper transport) by chelation and accelerated excretion of internally-deposited copper. These oral therapeutics are based on the respective active ingredients D-penicillamine (DPA) and N,N'-bis (2-aminoethyl) -1,2 ...
Tatiana G. Levitskaia   +6 more
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Passive Detection of Concealed Strontium-90 Radioisotope Thermoelectric Generators in Transport

open access: closedPackaging, Transport, Storage & Security of Radioactive Material, 2004
Abstract Many radioisotope thermoelectric generators (RTGs) used in civilian and military applications employ 90Sr, a high-energy beta emitter. The possibility of indirect or deliberate contamination of the environment with this isotope is not negligible.
I. Yaar, Esam M.A. Hussein
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Ultrafiltration of Calcium and Strontium from Sera of Patients with Protein Abnormalties Studied with the Radioisotope Technique1

open access: closedThe Journal of Clinical Endocrinology & Metabolism, 1963
The ultrafilterability of calcium and strontium from sera of patients with multiple myeloma and of patients with Boeck's sarcoidosis was studied by the use of tracer doses of Ca45 and Sr85. The results were compared with those obtained with sera of normals.
MARIANNE KARA   +2 more
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Preparation and evaluation of composite ion-exchanger for the removal of cesium and strontium radioisotopes [PDF]

open access: closedJournal of Radioanalytical and Nuclear Chemistry, 2007
Preparation conditions of composite ion-exchanger based on stannic molybdophosphate (SMP) and poly-acrylamide (PAA) have been described. Batch distribution coefficients for some ions were investigated at 25 °C. Sodium ion exchange capacity and breakthrough curves of cesium and strontium ions have also been determined.
Ali Reza Khanchi   +2 more
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