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Simultaneous measurements of cosmogenic radionuclides 32P, 33P and 7Be in dissolved and particulate forms in the upper ocean

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Abstract

A technique to determine concentrations of 32P, 33P and 7Be in dissolved and particulate forms, in the upper ocean was developed. By using a large volume in situ filtration and concentration system (LV-FiCS), several tons of seawater at different depths were filtered concurrently through two kinds of filters. The dissolved radionuclides were concentrated onto adsorbents in the LV-FiCS. The radionuclides obtained were further purified by precipitation and ion-exchange chromatography, and quantified by gamma-spectrometry and ultra-low level liquid scintillation counter measurements. The technique was used with good results in a coastal area of Ibaraki, Japan.

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Author notes

  1. M. Kusakabe

    Present address: Fundamental Technology Center, National Institute of Radiological Sciences, Anagawa 4-9-1, Inage-ku, Chiba, 263-8555, Japan

Authors and Affiliations

  1. Nakaminato Laboratory for Marine Radioecology, Research Center for Radiation Protection, National Institute of Radiological Sciences, Isozaki-cho 3609, Hitachinaka, Ibaraki, 311-1202, Japan

    T. Nakanishi, M. Kusakabe, T. Aono & M. Yamada

Authors
  1. T. Nakanishi
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  2. M. Kusakabe
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  3. T. Aono
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  4. M. Yamada
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Correspondence to T. Nakanishi.

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Nakanishi, T., Kusakabe, M., Aono, T. et al. Simultaneous measurements of cosmogenic radionuclides 32P, 33P and 7Be in dissolved and particulate forms in the upper ocean. J Radioanal Nucl Chem 279, 769–776 (2009). https://doi.org/10.1007/s10967-008-7374-5

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  • DOI: https://doi.org/10.1007/s10967-008-7374-5

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