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Neutron activation analysis of carbonate reference materials: coral (JCp-1) and giant clam (JCt-1)

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Abstract

Two kinds of carbonate reference materials, coral (JCp-1) and giant clam (JCt-1), were subjected to neutron activation analysis (NAA) using the Kyoto University Reactor in order to determine the halogen contents (Cl, Br, and I), as well as the abundances of a few other elements in these materials. The results from the present study are in agreement with previously reported data using this technique. However, inconsistencies are observed between the NAA data and data derived from inductively coupled plasma mass spectrometry studies for some elements. From a comparison of the halogen contents in the two carbonate reference materials with those in sedimentary rocks, differences in the mode of formation of the two carbonates are discussed.

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Acknowledgements

We are grateful to the members of the research reactor group in KURNS for assistance in the preparation as well as operation in the neutron irradiation experiments. A program for the cooperative use of KUR supported by Kyoto University is gratefully acknowledged. This work was partly supported by JSPS KAKENHI Grant numbers JP18H04150 (to OT), and JP18H01312, JP19K21993 (to SS). The invitation of VDH to KURNS was supported by the nuclear researchers exchange program from the Ministry of Education, Culture, Sports, Science and Technology. We thank Mr. Inoue (Kyoto University) for his contribution to data collating. Finally, We would like to thank Editage (www.editage.com) for English language editing.

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Author notes

  1. Yuta Homura

    Present address: Novaltis Farma, Sapporo, Hokkaido, 060-0003, Japan

Authors and Affiliations

  1. Institute for Integrated Radiation and Nuclear Science, Kyoto University, Asashiro-Nishi, Kumatori, Sennan, Osaka, 590-0494, Japan

    Shun Sekimoto, Yuta Homura, Makoto Inagaki & Tsutomu Ohtsuki

  2. Nuclear Research Institute, Vietnam Atomic Energy Institute, 01 Nguyen Tu Luc, Dalat, Lam Dong, Vietnam

    Van Doanh Ho

  3. Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo, 192-0397, Japan

    Naoki Shirai

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  1. Shun Sekimoto
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  2. Yuta Homura
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  4. Makoto Inagaki
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  6. Tsutomu Ohtsuki
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Correspondence to Shun Sekimoto.

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Sekimoto, S., Homura, Y., Ho, V.D. et al. Neutron activation analysis of carbonate reference materials: coral (JCp-1) and giant clam (JCt-1). J Radioanal Nucl Chem 322, 1579–1583 (2019). https://doi.org/10.1007/s10967-019-06885-z

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  • DOI: https://doi.org/10.1007/s10967-019-06885-z

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