Results 91 to 100 of about 1,030 (165)

Determination of strontium radioisotopes in routine and emergency samples

Applied Radiation and Isotopes, 2022
We present the radioanalytical strategies used for the determination of strontium radioisotopes in routine and emergency samples. While in routine monitoring, the main goal is to achieve limits of detection as low as possible. In emergency, priority is given to the rapid procurement of data about a contamination.
J A, Corcho-Alvarado, R, Gosteli, S, Röllin, H, Sahli, M, Stauffer, M, Burger   +5 more
openaire   +3 more sources

Determination of strontium radioisotopes in soils

Fresenius' 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, M. P. Volynets, B. F. Myasoedov, I. M. Rodionova, A. M. Tuzova   +4 more
openaire   +2 more sources

Uptake of cesium and strontium radioisotopes onto pillared clays

Journal 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, N. U. James, N. J. Terrill
openaire   +2 more sources

Radiosensitization with low-dose carboplatin enhances pain palliation in radioisotope therapy with strontium-89

Nuclear Medicine Communications, 1996
Strontium-89 (89Sr) is currently used for the treatment of painful bone metastases. This study reports the use of low-dose carboplatin as a radiosensitizer in 89Sr radioisotope therapy. The study design comprised two groups: 15 patients treated with 89Sr (148 MBq) followed by carboplatin (100 mg m-2 at 7 and 21 days) and 15 patients treated with 89Sr ...
R, Sciuto, C L, Maini, A, Tofani, C, Fiumara, M G, Scelsa, M, Broccatelli   +5 more
openaire   +3 more sources

Zirconium phosphates deposited on the granulated silica gel as adsorbents for the extraction of cesium, strontium radioisotope ions

Separation 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., Kovtun M. F., Botsman A.V.   +2 more
openaire   +2 more sources

Passive Detection of Concealed Strontium-90 Radioisotope Thermoelectric Generators in Transport

Packaging, 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, E. M. A. Hussein
openaire   +2 more sources

Systemic administration of new therapeutic radioisotopes, including phosphorus, strontium, samarium, and rhenium

Current Opinion in Oncology, 1994
New advances in systemic radionuclide therapy have increased the number of treatment options available for patients with painful osseous metastases. This form of therapy has three major appeals: 1) it addresses all sites of involvement; 2) selective absorption into bone limits irradiation of normal tissues; and 3) as a result, toxicity may be reduced ...
A T, Porter, E, Ben-Josef, L, Davis
openaire   +3 more sources

EVALUATION OF CUPRIMINE® AND SYPRINE® FOR DECORPORATION OF RADIOISOTOPES OF CESIUM, COBALT, IRIDIUM AND STRONTIUM

Health 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, Jeffrey A, Creim, Terry L, Curry, Teresa, Luders, James M, Peterson, Karla D, Thrall, Barry, Levinson   +6 more
openaire   +3 more sources

Ultrafiltration of Calcium and Strontium from Sera of Patients with Protein Abnormalties Studied with the Radioisotope Technique1

The 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, JOSEPH SAMACHSON, HERTA SPENCER   +2 more
openaire   +2 more sources

The optimization of the precision of the strontium/calcium ratio measurement in coral samples by radioisotope induced X-ray fluorescence

Spectrochimica Acta Part B: Atomic Spectroscopy, 1997
Abstract The estimation of sea surface water temperatures from the determination of the [Sr/Ca] atomic ratio in coral skeletons has been shown to be a promising method for investigating climate models. The determination of the Sr/Ca ratio by atomic absorption spectrometry was shown not to be acceptable because of the poor precision (around 3 ...
John J. Labrecque, P.A. Rosales
openaire   +2 more sources