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Preparation of no-carrier-added 211At solutions by a simple dry distillation method in the 209Bi(4He, 2n)211At reaction

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Abstract

211At was produced in the 209Bi(4He, 2n)211At reaction. The yield was separated from the irradiated bismuth target by a simple method, based on dry distillation. The optimized conditions of the method were studied by monitoring the astatine radioactivity with gamma-ray spectrometers. The no-carrier-added 211At solutions were prepared with eluents, namely distilled water, ethanol, methanol, or chloroform. Generally, the recovery yields obtained with the utilization of 1.6 mL of the eluent were 26–75%. The prepared 211At solutions were subjected to thin-layer chromatography and high-performance liquid chromatography to identify the chemical species present.

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Acknowledgements

The authors thank the crew of the TIARA, Y. Ohshima, K. Imai and M. Koka for cyclotron operation. We are thankful to S. Motoishi for providing the lead shieldings for the gamma-ray spectrometers. This work was supported by JSPS KAKENHI Grant Number JP18K11939.

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Authors and Affiliations

  1. Tokai Quantum Beam Science Center, Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology, Shirakata 2-4, Tokai-mura, Naka-gun, Ibaraki, 319-1106, Japan

    Ichiro Nishinaka

  2. Department of Radiation-Applied Biology, Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology, Watanuki 1233, Takasaki, Gunma, 370-1292, Japan

    Ichiro Nishinaka, Noriko S. Ishioka, Shigeki Watanabe & Ichiro Sasaki

  3. National Institute of Nuclear Medicine and Allied Sciences (NINMAS), Bangladesh Atomic Energy Commission (BAEC), BSMMU Campus, Shahbag, Dhaka-1000, Bangladesh

    Mohammad A. Azim

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  1. Ichiro Nishinaka
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  2. Noriko S. Ishioka
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  3. Shigeki Watanabe
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Correspondence to Ichiro Nishinaka.

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Nishinaka, I., Ishioka, N.S., Watanabe, S. et al. Preparation of no-carrier-added 211At solutions by a simple dry distillation method in the 209Bi(4He, 2n)211At reaction. J Radioanal Nucl Chem 326, 743–751 (2020). https://doi.org/10.1007/s10967-020-07308-0

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  • DOI: https://doi.org/10.1007/s10967-020-07308-0

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