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Development of HPLC columns for highly efficient and selective separation of hydrophilic and ionic substances

Research Project

Project/Area Number 20K05550
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 34020:Analytical chemistry-related
Research InstitutionKyoto Institute of Technology

Principal Investigator

Ikegami Tohru  京都工芸繊維大学, 分子化学系, 准教授 (20301252)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords親水性相互作用クロマトグラフィー / イオン交換 / ミックスモード / 構造選択性 / 分離特性 / 親水性相互作用 / イオン交換相互作用 / クロマトグラフィー / 重合修飾 / 立体選択性 / 糖の識別 / 親水性 / 液体クロマトグラフィー / 精密ラジカル重合
Outline of Research at the Start

本研究の目的は、生体由来の複雑成分を超高性能で分離する液体クロマトグラフィー分離媒体の開発にある。特に最近注目を集めている生体由来の成分から、親水性およびイオン性分子を分離する際の分離性能を飛躍的に向上すること、及び、その分離機能の高速分離への応用を目指す。
従来の親水性分子用の分離媒体に比べて、より高い保持と構造選択性を発現する分離媒体の創成のため、分子識別部位を高分子化し、高機能化を図る。高分子鎖の鎖長及び結合密度を最適化し、分離媒体の設計に必要な情報を獲得する。また、高速分離のために、低分子型分子識別部位でも十分な分離性能、保持、選択性を発現する媒体を開発する。

Outline of Final Research Achievements

Testing methods based on structural selectivity for hydrophilic interaction chromatography (HILIC) and mixed-mode columns were developed. This facilitates the comparison of columns in terms of the hydrophilicity, the degree of hydration, and the weak cation/anion exchange properties of the surface, using a single diagram. Methods were developed to modify silica gel with hydrophilic polymers using different manner of polymerization, and the resulting stationary phases were evaluated by the test method described above. It shows that the retention of hydrophilicity and selectivity can be controlled by adjusting the morphology and modification density of the polymer chains that make up the stationary phase. The columns prepared in this series of studies showed higher selectivity for OH groups than any previous HILIC columns. The conditions for precise separation of sugars were also investigated.

Academic Significance and Societal Importance of the Research Achievements

新しくHILICのカラムを調製して、それがこれまでに報告されたカラムと分離特性(親水性、水和相の厚み、表面のイオン交換性など)と比較し、評価する方法を提供した。このことは、学術的な意義にとどまらず、カラムを製造する企業が製品開発したり、製品の品質管理をしたりする際に利用されうるので、社会的意義が大きいと考える。また、原子移動ラジカル重合(ATRP)や可逆的付加開裂連鎖移動重合(RAFT)を用いて、古典的な重合法では到達できない領域まで、分離媒体の親水性の保持及び構造選択性を向上できることを示した。これは今後の分離媒体開発への指針となることが予想される。

Report

(3 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (15 results)

All 2021 2020 Other

All Int'l Joint Research (5 results) Journal Article (6 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 6 results) Presentation (3 results) (of which Invited: 1 results) Book (1 results)

  • [Int'l Joint Research] テュービンゲン大学(ドイツ)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] ペルージャ大学(イタリア)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] ウィーン大学(オーストリア)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] オルレアン大学(フランス)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] グスタフ・アドルフス大学(米国)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Functionalization using polymer or silane? A practical test method to characterize hydrophilic interaction chromatography phases in terms of their functionalization method2021

    • Author(s)
      Ikegami Tohru、Taniguchi Ashin、Okada Tomoyuki、Horie Kanta、Arase Syuntaro、Ikegami Yuka
    • Journal Title

      Journal of Chromatography A

      Volume: 1638 Pages: 461850-461850

    • DOI

      10.1016/j.chroma.2020.461850

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Comparison of the steric selectivity on hydrophilic interaction chromatography columns modified with poly(acrylamide) possessing different morphology2021

    • Author(s)
      Taniguchi Ashin、Ikegami Tohru
    • Journal Title

      Journal of Chromatography A

      Volume: 1650 Pages: 462207-462207

    • DOI

      10.1016/j.chroma.2021.462207

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] The relationship between polymer structures on silica particles and the separation characteristics of the corresponding columns for hydrophilic interaction chromatography2020

    • Author(s)
      Taniguchi Ashin、Tamura Saki、Ikegami Tohru
    • Journal Title

      Journal of Chromatography A

      Volume: 1618 Pages: 460837-460837

    • DOI

      10.1016/j.chroma.2019.460837

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Separation of carbohydrate isomers and anomers on poly-N-(1H-tetrazole-5-yl)-methacrylamide-bonded stationary phase by hydrophilic interaction chromatography as well as determination of anomer interconversion energy barriers2020

    • Author(s)
      Fu Xiaoqing、Cebo Malgorzata、Ikegami Tohru、Laemmerhofer Michael
    • Journal Title

      Journal of Chromatography A

      Volume: 1620 Pages: 460981-460981

    • DOI

      10.1016/j.chroma.2020.460981

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Fragment-based Design of Zwitterionic, Strong Cation- and Weak Anion-Exchange Type Mixed-mode Liquid Chromatography Ligands and their Chromatographic Exploration2020

    • Author(s)
      Ferri Martina、Baeurer Stefanie、Carotti Andrea、Wolter Marc、Alshaar Belal、Theiner Johannes、Ikegami Tohru、West Caroline、Laemmerhofer Michael
    • Journal Title

      Journal of Chromatography A

      Volume: 1621 Pages: 461075-461075

    • DOI

      10.1016/j.chroma.2020.461075

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A selective comprehensive reversed-phase×reversed-phase 2D-liquid chromatography approach with multiple complementary detectors as advanced generic method for the quality control of synthetic and therapeutic peptides2020

    • Author(s)
      Karongo Ryan、Ikegami Tohru、Stoll Dwight R.、Laemmerhofer Michael
    • Journal Title

      Journal of Chromatography A

      Volume: 1627 Pages: 461430-461430

    • DOI

      10.1016/j.chroma.2020.461430

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 高親水性物質の分離を目的としたポリマーブラシ修飾型 HILIC固定相の開発2021

    • Author(s)
      谷口 亜紳、池上 亨
    • Organizer
      第32回クロマトグラフィー科学会議
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 親水性相互作用クロマトグラフィー(HILIC)の固定相における糖類分子の保持と選択性に及ぼす高分子構造の影響2020

    • Author(s)
      谷口亜紳 池上 亨
    • Organizer
      第31回クロマトグラフィー科学会議
    • Related Report
      2020 Research-status Report
  • [Presentation] HILICカラムの新規キャラクタリゼーション法の開発2020

    • Author(s)
      箕﨑知里 谷口亜紳 池上 亨
    • Organizer
      第31回クロマトグラフィー科学会議
    • Related Report
      2020 Research-status Report
  • [Book] Advances in Chromatography Volume 572020

    • Author(s)
      Kazuhiro Kimata, Eisuke Kanao, Takuya Kubo, Kodai Kozuki, Tohru Ikegami, Masahiro Furuno, Koji Otsuka, Nobuo Tanaka
    • Total Pages
      34
    • Publisher
      Taylor & Fransis
    • ISBN
      9781003024385
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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