| Autor: | Yoshihito Ohtsuka, Aya Sakaguchi, K. Yokota, Kazuhisa Komura, Masayoshi Yamamoto, Keiichi Sasaki |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Radionuclide
Elution Health Toxicology and Mutagenesis Radiochemistry Public Health Environmental and Occupational Health Fraction (chemistry) Mass spectrometry Pollution Analytical Chemistry chemistry.chemical_compound Nuclear Energy and Engineering chemistry Volume (thermodynamics) Carbonate Radiology Nuclear Medicine and imaging Ion-exchange resin Spectroscopy Potassium tetraphenylborate |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 258:101-105 |
| ISSN: | 0236-5731 |
| DOI: | 10.1023/a:1026262226575 |
| Popis: | A simple analytical method was developed for the determination of cosmogenic 22Na radionuclide in fresh water samples by ultra low-background g-ray spectrometry after radiochemical separation. The method consists in pre-concentration of 22Na(Na) by a ion exchange resin column from a large volume of ca. 500-liter water samples, elution with 4M HCl from the resin, and removal of the main metal components such as Ca and Mg as carbonate precipitates and of 40K(K) as potassium tetraphenylborate K[B(C6H5)4]. The obtained 22Na fraction was successfully measured by an ultra low-background Ge detector installed in the Ogoya Underground Laboratory. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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