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Accuracy analysis on concentration determination of molecular iodine in gamma irradiated solutions

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Abstract

The gamma irradiated aqueous samples containing I2 and I− were measured by two different analysis methods using an UV–VIS spectrophotometer. One is the I2 concentration was determined by using the equilibrium relationship between I3− and I−. The other is I2 concentration was measured after extracted by toluene. In the I2 and total I measurements, both methods were confirmed to have an accuracy within 4%. The I2 concentrations measured by the toluene extraction method were always lower for the identical samples than those measured by the equilibrium relationship method. This was understood as a loss occurring in the toluene extraction step.

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Acknowledgements

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT: the Ministry of Science and ICT) (No. 2017M2A8A4015281).

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

    Minsik Kim & Jei-Won Yeon

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  1. Minsik Kim
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  2. Jei-Won Yeon
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Correspondence to Jei-Won Yeon.

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Kim, M., Yeon, JW. Accuracy analysis on concentration determination of molecular iodine in gamma irradiated solutions. J Radioanal Nucl Chem 330, 469–473 (2021). https://doi.org/10.1007/s10967-021-07912-8

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