Author:
Helal A. I.,Zahran N. F.,Amr M. A.,Abd El-Lateef A. M.,Bashter I. I.,Mohsen H. T.,Abbas Y.
Abstract
AbstractExtensive work is under way using High Resolution-ICP-MS for90Sr,234U,235U,238U,239Pu,240Pu, and241Am detection. Sample preparation procedures based on liquid-liquid extraction and ion exchange chromatography were developed. Sr, U, Pu, and Am were separated from their matrix and concentrated to improve the power of detection in the mass spectrometer. A microconcentric nebulizer with a desolvation introduction system (Ardius) is used. Instrumental limits of detection using Sr and U standard solutions are 0.01 ppt and 0.006 ppt for Sr and U, respectively. A study is presented on the mass interferences for the specified radionuclides. In the environmental samples investigated the90Sr/86Sr isotope ratio is 6.02×10-9and for240Pu/239Pu the isotope ratio is 0.17.
Subject
Physical and Theoretical Chemistry
Cited by
15 articles.
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