Determination of selenium in environmental materials by neutron activation and inorganic ion exchange
A procedure for the determination of Se in environmental samples is described. Neutron-irradiated samples are dissolved in acid and 75Se is adsorbed on an Al2O3 inorganic ion-exchange column from 5 M HCl-1 M H3PO4 solution. Tantalic acid is precipitated and filtered before loading on the column, whi...
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| Published in | Analytical chemistry (Washington) Vol. 52; no. 6; pp. 825 - 828 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
American Chemical Society
01.05.1980
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| Online Access | Get full text |
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| Summary: | A procedure for the determination of Se in environmental samples is described. Neutron-irradiated samples are dissolved in acid and 75Se is adsorbed on an Al2O3 inorganic ion-exchange column from 5 M HCl-1 M H3PO4 solution. Tantalic acid is precipitated and filtered before loading on the column, which decreases interference from 181Hf, 182Ta and 233Pa. The adsorbed 75Se is determined by Ge(Li) gamma spectrometry. Selenium concentrations determined by the procedure in NBS reference materials and USGS rock standards compare well with certified and other reported values.36 refs.--AA |
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| Bibliography: | istex:6EEE3306AC89DCE4BE69E3599CF3CFA91F5AB562 ark:/67375/TPS-R9XHWCSM-5 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 0003-2700 1520-6882 |
| DOI: | 10.1021/ac50056a013 |