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Speciation and chemical behaviors of a superheavy elemnt, Rf in aqueous solution

Research Project

Project/Area Number 23550070
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Inorganic chemistry
Research InstitutionKanazawa University

Principal Investigator

YOKOYAMA AKIHIKO  金沢大学, 物質化学系, 教授 (80230655)

Co-Investigator(Kenkyū-buntansha) SATO Wataru  金沢大学, 理工研究域物質化学系, 准教授 (90333319)
Co-Investigator(Renkei-kenkyūsha) TSUKADA Kazuaki  日本原子力機構, 先端基礎研究センター, サブリーダー (30343916)
HABA Hiromitsu  理化学研究所, 森田超重元素研究室, 専任研究員 (60360624)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Keywords超重元素 / 抽出クロマトグラフィー / ラザホージウム / 液液抽出 / 液液平衡
Research Abstract

In order to elucidate relevant chemical species of Rf by means of reversed-phase extraction chromatography with 2-thenoyltrifluoroacetone (TTA) as a stationary phase, we measured the equilibration time and distribution ratios in extraction by batch method experiments with carrier-free radiotracers of Zr and Hf on TTA-resin in the HF/HNO3 solutions and optimized an appropriate experimental condition for Rf. An online experiment has been also performed for the reversed-phase chromatographic behaviors of Zr and Hf on the TTA resin to simulate the Rf experiments. The elution curves from columns with the resin in the on-line experiment using Zr and Hf short-lived isotopes were obtained to show the effective adsorption with TTA although the equilibrium has not been attained, yet. The Rf atoms appears to be adsorbed to TTA in the on-line experiment with Rf, but the analysis is still on the way to deriving conclusive results.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (11 results)

All 2014 2013 2012 2011

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (6 results)

  • [Journal Article] Adsorption behavior of Zr and Hf to TTA-resin in microcolumn for determining the forming ability of Rf monofluoride complex2014

    • Author(s)
      A. Yokoyama, Y. Kitayama, Y. Fukuda, A. Toyoshima, K. Tsukada, E. Maeda, H. Kimura, T. Taniguchi, S. Ueno, K. Hayashi, H. Kikunaga, M. Murakami, J. Kanaya, M. Huang, H. Haba
    • Journal Title

      RIKEN Accel. Prog. Rep

      Volume: Vol.47(in press)

    • URL

      http://www.nishina.riken.jp/researcher/APR/index_e.html

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Adsorption Behavior of Zr and Hf to TTA-resin in Microcolumn for Determining the Forming Ability of Rf Monofluoride Complex2014

    • Author(s)
      Y. Kitayama, Y. Shigeyoshi, A. Yokoyama, A. Toyoshima, K. Tsukada, K. Ooe, E. Maeda, H. Kimura, H. Kikunaga, Y. Kudou, J. Kanaya, M. Huang, H. Haba
    • Journal Title

      Journal of Nuclear and Radioanalytical Chemistry

      Volume: 未定

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Adsorption behavior of Zr and Hf to TTA-resin in microcolumn for determining the forming ability of Rf monofluoride complex2014

    • Author(s)
      A. Yokoyama, Y. Kitayama, Y. Fukuda, A. Toyoshima, K. Tsukada, E. Maeda, H. Kimura
    • Journal Title

      RIKEN Accelerator Report 2013

      Volume: 48

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Preliminary study on quadrivalent chemical species of rutherfordium in aqueous solution by means of TTA resin2013

    • Author(s)
      A. Yokoyama, Y. Shigeyoshi, Y. Kitayama, A. Toyoshima, K. Tsukada, K. Ooe, E. Maeda, H. Kimura, H. Kikunaga, Y. Kudou, J. Kanaya, M. Huang, H. Haba
    • Journal Title

      RIKEN Accel. Prog. Rep

      Volume: Vol.46 Pages: 242-242

    • URL

      http://www.nishina.riken.jp/researcher/APR/index_e.html

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Preliminary study on quadrivalent chemical species of rutherfordium in an aqueous solution by using TTA resin2013

    • Author(s)
      A. Yokoyama, Y. Shigeyoshi, Y. Kitayama, A. Toyoshima, K. Tsukada, K. Ooe, E. Maeda, H. Kimura, H. Kikunaga, Y. Kudou, J. Kanaya, M. Huang, and H. Haba
    • Journal Title

      RIKEN Accelerator Progress Report

      Volume: Vol. 46

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] Adsorption Behavior of Zr and Hf to TTA-resin in Microcolumn for Determining the Forming Ability of Rf Monofluoride Complex2013

    • Author(s)
      Y. Kitayama, Y. Shigeyoshi, A. Toyoshima, K. Tsukada, K. Ooe, E. Maeda, H. Kimura, H. Kikunaga, Y. Kudou, J. Kanaya, M. Huang, H. Haba, A. Yokoyama
    • Organizer
      5th Asia-Pacific Symposium on Radiochemistry
    • Place of Presentation
      Kanazawa, Japan
    • Related Report
      2013 Final Research Report
  • [Presentation] Adsorption Behavior of Zr and Hf to TTA-resin in Microcolumn for Determining the Forming Ability of Rf Monofluoride Complex2013

    • Author(s)
      Y. Kitayama, Y. Shigeyoshi, A. Yokoyama, A. Toyoshima, K. Tsukada, K. Ooe, E. Maeda, H. Kimura, H. Kikunaga, Y. Kudou, J. Kanaya, M. Huang, H. Haba
    • Organizer
      5th Asia-Pacific Symposium on Radiochemsitry
    • Place of Presentation
      金沢市民文化ホール、金沢市
    • Related Report
      2013 Annual Research Report
  • [Presentation] Study on Quadrivalent Chemical Species of Rutherfordium in Aqueous Solution by Means of TTA resin2012

    • Author(s)
      A. Yokoyama, Y. Shigeyoshi, Y. Takeda, M. Araki, A. Toyoshima, K. Tsukada, Y. Kasamatsu, H. Kikunaga, H. Haba, and J. Kanaya
    • Organizer
      EuCheMS International Conference on Nuclear and Radiochemistry (NRC-8)
    • Related Report
      2013 Final Research Report
  • [Presentation] Rfの化学種解明に向けた逆相クロマトグラフ用樹脂調製法の再検討II2012

    • Author(s)
      重吉祐生, 北山雄太, 横山明彦
    • Organizer
      2012日本放射化学会年会・第56回放射化学討論会
    • Place of Presentation
      東京工業大学大岡山
    • Related Report
      2012 Research-status Report
  • [Presentation] Study on Quadrivalent Chemical Species of Rutherfordium in Aqueous Solution by Means of TTA resin2012

    • Author(s)
      A. Yokoyama, Y. Shigeyoshi, Y. Takeda, M. Araki, A. Toyoshima, K. Tsukada, Y. Kasamatsu, H. Kikunaga, and H. Haba
    • Organizer
      International Conference on Nuclear and Radiochemistry (NRC8)
    • Place of Presentation
      Como, Italy
    • Related Report
      2012 Research-status Report
  • [Presentation] ラザホージウム化学種解明のための逆相抽出クロマトグラフ用樹脂調整法の再検討2011

    • Author(s)
      武田 勇樹
    • Organizer
      日本放射化学会
    • Place of Presentation
      長野市若里市民文化ホール(長野)
    • Related Report
      2011 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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