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Experimental evaluation of uranium ion signal intensity enhancement of TIMS using graphite powder deposition on uranium samples

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Abstract

This study shows that the effectiveness of ultra-trace-level uranium isotopic analysis by thermal ionization mass spectrometry can be increased by treatment of uranium samples with graphite powder, which results in a 1.9-fold enhancement of uranium ion signal intensity and thus improves analytical accuracy, precision, and measurement uncertainty. Additionally, a mechanistic rationalization of the observed intensity enhancement is provided.

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Acknowledgements

This work was supported by the Ministry of Science and ICT (MSIP), and the Nuclear Safety and Security Commission (NSSC) of South Korea. The author thanks Ms. Eun-Ju Choi for assistance with TIMS measurement.

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Authors and Affiliations

  1. Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute, 111 Daedeok-daero-989, Yuseong-gu, Daejeon, 34057, Republic of Korea

    Jong-Ho Park

  2. Department of Radiochemistry and Nuclear Non-proliferation, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea

    Jong-Ho Park

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  1. Jong-Ho Park
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Correspondence to Jong-Ho Park.

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Park, JH. Experimental evaluation of uranium ion signal intensity enhancement of TIMS using graphite powder deposition on uranium samples. J Radioanal Nucl Chem 316, 1075–1079 (2018). https://doi.org/10.1007/s10967-018-5768-6

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  • DOI: https://doi.org/10.1007/s10967-018-5768-6

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