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Synthesis of novel chitosan resins for collection/concentration of non-metallic elements

Research Project

Project/Area Number 17550143
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental chemistry
Research InstitutionOKAYAMA UNIVERSITY

Principal Investigator

OSHIMA Mitsuko  Okayama University, Graduate School of Natural Science and Technology, Associate Professor, 大学院自然科学研究科, 助教授 (80108117)

Project Period (FY) 2005 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2006: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2005: ¥3,100,000 (Direct Cost: ¥3,100,000)
Keywords3,4-diaminobenzene introduced chitosan resin / Arsenic / Selenium / ICP-MS / ICP-AES / Speciation / Automated pretreatment system / 自動前処理
Research Abstract

Non-metallic elements are sometimes dissolving as oxoanions in an aqueous media. Of these, arsenic and selenium form complexes with ligands possessing nitrogen atom(s) as coordinate atoms. I newly synthesized a chitosan resin derivatized with 3,4-diamino benzoic acid by using the cross-linked chitosan (CCTS) as a base material (CCTS-DBA resin). Cross-linking of chitosan was carried out with ethyleneglycoldiglycidylether (EGDE), for not shrinking even in a concentrated acidic solution. Then CCTS was reacted with chloromethyloxylane to form "arm" at amino group and finally introduced 3,4-diamino benzoic acid (CCTS-DBA resin). At first, fundamental characteristics (IR spectra, pKa, capacity etc.) of the resin was tested. Then, the adsorption behavior of trace amounts of elements on the CCTS-DBA resin was examined by the column pretreatment method, following measurement by ICP-MS. The resin could adsorb some metal cations at pH from neutral to alkaline region, and several oxoanion species, … More such as arsenic (V), selenium (IV), and selenium (VI) at acidic region. The CCTS-DBA resin is then applied to the collection/concentration of arsenic (V), selenium (VI), and total selenium (IV, VI) in bottled drinking water, tap water, and river water before their measurement by ICP-MS.
The batchwise pretreatment needed for 20 min/1 sample, so that automatically controlled collection/ concentration system for ICP-AES was developed. Elements was collected with small chelating disks and chelating resin with iminodiacetate moiety packed in a line filter. This column was installed in the 6-way valve on the pretreatment system which can be connected on line to ICP-AES. The flow rate was 1 ml min- 1 and conditioning of the chelating disk was carried out by flowing 0.5 M ammonium acetate(pH 5.5) for 2 min, sampling for 5 min and washing for 1 min. Elution was done by passing through 2 M HNO3 at 1.3 ml min-1 for 1 min. Nine elements can be determined with 5.0 ml of sample solution. The enrichment factors were 3・15 times and collection efficiencies were better than 80%. The detection limits(LOD) were from 0.003 for Mn to 0.311 for Bi which were several 10 to 100 times lower than normal LOD of ICP-AES. This automated pretreatment method will successfully applied to the determination of non-metallic elements with CCTS-DBA resin by ICP-AES. Less

Report

(3 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • Research Products

    (6 results)

All 2006 2005

All Journal Article (6 results)

  • [Journal Article] 誘導結合プラズマ発光分析のためのキレート樹脂を用いる高感度自動前処理濃縮2006

    • Author(s)
      山本貴子, A.Sabarudin, 野口 修, 高柳俊夫, 大島光子, 本水昌二
    • Journal Title

      分析化学(Bunseki Kagaku) 55巻9号

      Pages: 715-720

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Highly Sensitive and Automatic Collection/Concentration with Chelating Resin for Inductively Coupled Atomic Emission Spectroscopy2006

    • Author(s)
      T.Yamamoto, A.Sabarudin, O.Noguchi, T.Takayanagi, M.Oshima, S.Motomizu
    • Journal Title

      Bunseki Kagaku 55 (9)

      Pages: 715-720

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 誘導結合プラズマ発光分析のためのキレート樹脂を用いる高感度自動前処理濃縮2006

    • Author(s)
      山本貴子, A.Sabarudin, 野口修, 高柳俊夫, 大島光子, 本水昌二
    • Journal Title

      分析化学(Bunseki Kagaku) 55巻9号

      Pages: 715-720

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Synthesis of chitosan resin possessing 3,4-diaminobenzoic acid moiety for the collection/concentration of arsenic and selenium in water samples and their measurement by inductively coupled plasma-mass spectrometry2005

    • Author(s)
      A.Sabardin, K.Oshita, M.Oshima, S.Motomizu
    • Journal Title

      Anal. Chim. Acta 542巻

      Pages: 207-215

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Synthesis of chitosan resin possessing 3,4-diaminobenzoic acid moiety for the collection/concentration of arsenic and selenium in water samples and their measurement by inductively coupled plasma-mass spectrometry2005

    • Author(s)
      A.Sabardin, K.Oshita, M.Oshima, S.Motomizu
    • Journal Title

      Anal.Chim.Acta. 542

      Pages: 207-215

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Synthesis of chitosan resin possessing 3,4-diaminobenzoic acid moiety for the collection/concentration of arsenic and selenium in water samples and their measurement by inductively coupled plasma-mass spectrometry2005

    • Author(s)
      A.Sabardin, K.Oshita, M Oshima, S.Motomizu
    • Journal Title

      Anal. Chim. Acta 525

      Pages: 207-215

    • Related Report
      2005 Annual Research Report

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Published: 2005-04-01   Modified: 2016-04-21  

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