Determination of Ac in water by alpha spectrometry after purification with titanium phosphate and DGA resin
Journal of Radioanalytical and Nuclear Chemistry, ISSN: 1588-2780, Vol: 331, Issue: 12, Page: 5781-5788
2022
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Article Description
A new routine method to measure Ac in water samples was developed. Actinium-227 was separated from potential radioactive and matrix interferences using a DGA resin (Eichrom) at optimal extraction and elution conditions (2 M and 15.7 M HNO, respectively). This was possible because Ac was pre-concentrated and separated from Ca using titanium phosphate co-precipitation at pH 3.5. Finally, Ac was counted by alpha spectrometry for 48 h after a cerium fluoride micro-precipitation. A minimal detection limit of 0.03 ± 0.01 Bq l was obtained. The method was validated using spiked water samples.
Bibliographic Details
Springer Science and Business Media LLC
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