Summary
Liquid scintillation counting of the alpha-radionuclides after pre-concentration by cation-exchange represents a simple and robust method for the determination of total alpha-radioactivity in seawater. The total efficiency and the minimum detectable activity were calculated to be 95% and 30 mBq, respectively, for a liter sample and 1000-minute measuring time. The method has been applied successfully for the determination of alpha-radioactivity in seawater from five different coastal areas in Cyprus. The average alpha-radioactivity and uranium concentration were found to be 124±8 mBq . l-1 and 3.2±0.2 mg . l-1, respectively.
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Antoniou, S., Costa, C. & Pashalidis, I. Alpha-radiometry of seawater by liquid scintillation counting. J Radioanal Nucl Chem 270, 593–596 (2006). https://doi.org/10.1007/s10967-006-0466-1
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DOI: https://doi.org/10.1007/s10967-006-0466-1