Abstract
The combination and optimization of the cyclic modes in neutron activation analysis (NAA) at the Dalat research reactor were performed to determine short-lived nuclides. This work focused on determination of selenium in biological materials using 77mSe (T 1/2 = 17.4 s) as a case in point. The detection limit was significantly improved by a factor of 3–4 times in comparison with the conventional NAA. The precision was typically within the range of 4–6 % at the third or fourth cycle. It is a reliable technique for determination of selenium in biological materials at sub-ppm concentration levels.
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Acknowledgments
We would like to thank the Ministry of Science and Technology of Vietnam for the financial support through the project coded CS/13/01-01. Our special thanks are due to operators of Dalat reactor for their enthusiastic help in sample irradiations.
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Ho, V., Ho, M., Tran, Q. et al. Combination and optimization of the cyclic NAA modes at the Dalat research reactor for determination of selenium in biological materials using 77mSe. J Radioanal Nucl Chem 309, 185–188 (2016). https://doi.org/10.1007/s10967-016-4784-7
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DOI: https://doi.org/10.1007/s10967-016-4784-7