Determination of uranium in Egyptian graniteic ore by gamma, alpha, and mass spectrometry
| Autor: | Jukka Lehto, Ibrahim E. El Assay, Hanna Tuovinen, Mahmoud R Khattab, Mohamed G. El Feky, Mohamed A. Abd.El-Rahman |
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| Rok vydání: | 2016 |
| Předmět: |
inorganic chemicals
Alpha spectrometry Chemistry General Chemical Engineering Radiochemistry technology industry and agriculture chemistry.chemical_element Alpha (ethology) 010501 environmental sciences Uranium 010403 inorganic & nuclear chemistry Mass spectrometry complex mixtures 01 natural sciences Isotopic composition 0104 chemical sciences Uranium measurement Activity concentration Instrumentation Inductively coupled plasma mass spectrometry 0105 earth and related environmental sciences General Environmental Science |
| Zdroj: | Instrumentation Science & Technology. 45:338-348 |
| ISSN: | 1525-6030 1073-9149 |
| DOI: | 10.1080/10739149.2016.1242078 |
| Popis: | Three methods were employed for the determination of uranium in granitic ore rock samples. Gamma spectrometry is a non-destructive technique while alpha spectrometry and inductively coupled plasma–mass spectrometry (ICP-MS) are destructive methods needing application of radiochemical separation before uranium measurement. In gamma spectrometry, the activity concentration of uranium is measured via its daughter (234mPa) in the decay series, while in alpha spectrometry and inductively coupled plasma mass spectrometry (ICP-MS), the activity concentration of uranium is measured directly. The activity concentrations of uranium in the samples by gamma spectrometry were between 36.7 ± 0.5 and 239 ± 2.3 Bq g−1. The activity concentrations of uranium by alpha spectrometry and ICP-MS were from 28.7 ± 1 to 145 ± 1 Bq g−1 and 34.3 ± 1.4 to 155.9 ± 1.6 Bq g−1, respectively. The ICP-MS and alpha spectrometry methods provided reliable results. The uranium concentrations obtained by gamma spectrometry were, howev... |
| Databáze: | OpenAIRE |
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