水中低分子アルデヒドの高感度分析におけるブランク低減へのγ線照射の応用  [in Japanese] Application of γ-Ray Irradiation to Reduction of Blank for Highly Sensitive Analysis of Low Molecular Weight Aldehydes in Water  [in Japanese]

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Author(s)

    • 竹田 一彦 TAKEDA Kazuhiko
    • 広島大学大学院生物圏科学研究科環境循環系制御学専攻 Graduate School of Biosphere Science, Hiroshima University
    • 三井 裕美 MITSUI Yumi
    • 広島大学大学院生物圏科学研究科環境循環系制御学専攻 Graduate School of Biosphere Science, Hiroshima University
    • 近藤 宏壮 KONDO Hiroaki
    • 広島大学大学院生物圏科学研究科環境循環系制御学専攻 Graduate School of Biosphere Science, Hiroshima University
    • 中谷 暢丈 NAKATANI Nobutake
    • 広島大学大学院生物圏科学研究科環境循環系制御学専攻 Graduate School of Biosphere Science, Hiroshima University
    • 佐久川 弘 SAKUGAWA Hiroshi
    • 広島大学大学院生物圏科学研究科環境循環系制御学専攻 Graduate School of Biosphere Science, Hiroshima University

Abstract

For a highly sensitive analysis of formaldehyde and acetaldehyde in water, a degradation of formaldehyde and acetaldehyde in blank water by <sup>60</sup>Co γ-ray irradiation was demonstrated. Formaldehyde and acetaldehyde in water were evaluated by using a large-volume injection/column switching/high pressure gradient HPLC system coupled with 2,4-dinitrophenylhydrazine derivatization. By γ-ray irradiation, formaldehyde was decomposed to formic acid, and the resulting formic acid was furthermore decomposed. Acetaldehyde also oxidized to acetic acid upon exposure to γ-rays. In the early stage of γ-ray irradiation for Milli-Q water, the formaldehyde and acetaldehyde in Milli-Q water increased, and many unknown peaks appeared in HPLC chromatograms. The formaldehyde, acetaldehyde and unknown species formed upon γ-ray irradiation may be derived from trace organic mater contained in Milli-Q water. Acetaldehyde and unknown peaks disappeared upon further γ-ray irradiation, and the formaldehyde peak was also diminished. In this report, purification of the DNPH derivatization reagent is also mentioned.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 58(2), 101-105, 2009-02-05

    The Japan Society for Analytical Chemistry

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Codes

  • NII Article ID (NAID)
    110007081541
  • NII NACSIS-CAT ID (NCID)
    AN00222633
  • Text Lang
    JPN
  • Article Type
    NOT
  • ISSN
    05251931
  • NDL Article ID
    10171899
  • NDL Source Classification
    ZP4(科学技術--化学・化学工業--分析化学)
  • NDL Call No.
    Z17-9
  • Data Source
    CJP  NDL  NII-ELS  IR  J-STAGE  NDL-Digital 
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