Radiochemical Separation of Thallium by Amalgam Exchange
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Iqbal H. Qureshi
Summary
The radiochemical separation of thallium by an amalgam exchange technique has been critically evaluated for the aqueous 0.5 M sodium nitrate system. With an optimized procedure, thallium yields of more than 95% were obtained while yields of contaminants, in most cases, were less than 0.1%. The yield is relatively insensitive to interferences from mineral acids, alkalies and salts, except for halogen acids, sulphites and oxidizing agents. At room temperature the procedure requires about 6 minutes while at 50 °C it can be carried out in only 4 minutes. The application of this method to the separation of radio-thallium in the presence of fission products requires about 8 minutes. This procedure appears to have useful potential for the separation of short-lived isotopes of thallium and can readily be modified for the determination of small amounts of thallium in various samples when used in conjunction with neutron activation analysis.
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Artikel in diesem Heft
- Preparation of 18F in a Nuclear Reactor
- Rapid Solvent Extraction Methods for Fission Product Separation and Analysis
- Half-Life Determination of 220Rn
- The Gas Phase Radiolysis of Ethyl Chloride
- Radiolysis of Ethyl Iodide in the Liquid Phase
- Observations on Spur Reactions in the Liquid Phase γ-Radiolysis
- The Szilard-Chalmers Effect in Cyclohexane-Iodide Mixtures
- The Effect of γ-Pre-Irradiation on Recoil Phenomena in Crystals
- Retention and Annealing Reactions in Dichromates
- Some Observations on the Szilard-Chalmers Process in Dichromates
- A Survey of Photoneutron Sources
- Radiochemical Separation of Thallium by Amalgam Exchange
- Kurze Mitteilungen
- Fast Separation of Antimony from Irradiated Enriched Tellurium
- Beitrag zur strahlenchemisch-thermischen Zersetzung von Kohlenwasserstoffen
Artikel in diesem Heft
- Preparation of 18F in a Nuclear Reactor
- Rapid Solvent Extraction Methods for Fission Product Separation and Analysis
- Half-Life Determination of 220Rn
- The Gas Phase Radiolysis of Ethyl Chloride
- Radiolysis of Ethyl Iodide in the Liquid Phase
- Observations on Spur Reactions in the Liquid Phase γ-Radiolysis
- The Szilard-Chalmers Effect in Cyclohexane-Iodide Mixtures
- The Effect of γ-Pre-Irradiation on Recoil Phenomena in Crystals
- Retention and Annealing Reactions in Dichromates
- Some Observations on the Szilard-Chalmers Process in Dichromates
- A Survey of Photoneutron Sources
- Radiochemical Separation of Thallium by Amalgam Exchange
- Kurze Mitteilungen
- Fast Separation of Antimony from Irradiated Enriched Tellurium
- Beitrag zur strahlenchemisch-thermischen Zersetzung von Kohlenwasserstoffen
