Separation of no-carrier-added thallium radionuclides from no-carrier-added lead and mercury radionuclides by dialysys

Inactive Publication Date: 2010-02-18
SAHA INSTITUTE OF NUCLEAR PHYSICS
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[0008]Thus the main object of the present invention is to provide a simple, environment friendly, cost effective, ra

Problems solved by technology

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  • Separation of no-carrier-added thallium radionuclides from no-carrier-added lead and mercury radionuclides by dialysys
  • Separation of no-carrier-added thallium radionuclides from no-carrier-added lead and mercury radionuclides by dialysys
  • Separation of no-carrier-added thallium radionuclides from no-carrier-added lead and mercury radionuclides by dialysys

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example 1

[0018]A gold target is irradiated with 48 MeV 7Li beam at BARC-TIFR Pelletron, Mumbai, India. No-carrier added radionuclides 197Hg, 198-200Tl, 199,200Pb were produced in the gold matrix. After production, no-carrier-added radionuclides are separated from bulk gold by liquid-liquid extraction using 0.1 M TOA and 1 M HNO3 as organic and aqueous phase respectively. The aqueous phase containing 197Hg, 198-200Tl, 199,200Pb is kept in a dialysis sac (D9777, Dialysis Tubing Cellulose, Membrane, size: 25 mm×16 mm. SIGMA-ALDRICH). Dialysis sac is further kept in a 200 mL glass beaker filled with MQ water. Dialysis is carried out with varying temperature of water, 0° C., 20° C. (room temperature) and 50° C. The pH of the aqueous solutions containing no-carrier-added radionuclides is also varied. It has been found that in neutral medium and at 20° C. / 50° C. only 199Tl radionuclides are coming out of the dialysis sac and all other radionuclides are confined in the dialysis sac. The separation is

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Abstract

A process for separation of no-carrier-added thallium radionuclide from no-carrier-added lead and mercury comprising providing a solution of no-carrier-added thallium radionuclide and no-carrier-added lead and mercury to dialysis. By this method separation of 199Tl radionuclides has also been achieved in presence of macro quantity of inactive thallium, which is as high as 10 mM. The method is capable of being used in Medical industry, diagnosis of cardiac diseases by 201Tl or 199Tl and all other industries where trace amount of thallium separation is required from mercury and lead.

Description

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Claims

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Application Information

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Owner SAHA INSTITUTE OF NUCLEAR PHYSICS
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