Abstract
A sensitive method for determination of low-level tritium in seawater samples was established by enrichment of tritium from large volume of seawater using electrolysis and ultra-low level liquid scintillation counting measurement. A constant and optimal overall measurement efficiency of tritium was obtained by controlling the electrolysis conditions and optimizing the measurement parameters. A detection limit of this method of 0.45 TU for tritium was achieved using 700 mL seawater samples, which enables to determine tritium in most of seawater except for some deep seawater. The developed method has been applied for determination of tritium in the East China Sea.
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Acknowledgements
This work was financially supported by Chinese Academy of Sciences (ZDBS-SSW-DQC003; International Partnership Program No. 132B61KYSB20180003), Seawater samples were collected onboard of R/V “Kexue III” implementing the open research cruise 2021 supported by the Yangtze Estuary Ecosystem Research Station of IOCAS.
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Zhang, T., Jiang, H., Chen, N. et al. Determination of tritium in large volume of seawater using electrolytic enrichment and LSC and its application for the East China Sea water. J Radioanal Nucl Chem 332, 981–987 (2023). https://doi.org/10.1007/s10967-022-08752-w
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DOI: https://doi.org/10.1007/s10967-022-08752-w