Characterization of reactive oxygen species on basic metal peroxides as reaction media for luminol and lucigenin chemiluminescence sensing.

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  • GOTO Hajime
    Department of Industrial Chemistry, Faculty of Engineering, Tokyo Metropolitan University
  • LIN Jin-Ming
    Department of Industrial Chemistry, Faculty of Engineering, Tokyo Metropolitan University
  • YAMADA Masaaki
    Department of Industrial Chemistry, Faculty of Engineering, Tokyo Metropolitan University

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Other Title
  • 塩基性金属過酸化物上でのルミノール及びルシゲニン化学発光反応に関与する活性酸素種の同定
  • エンキセイ キンゾク カサンカ ブツジョウ デ ノ ルミノール オヨビ ルシゲ
  • ルミノール及びルシゲニン化学発光の反応場としての塩基性金属過酸化物(第2報)

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Abstract

Very intense chemiluminescence (CL) has been observed upon adding an aqeous solution of luminol and lucigenin on basic metal peroxedes (MgO2, BaO2), which were readily prepared through a treatment of the corresponding metal oxides with hydrogen peroxide. Luminol gives intense CL on both metal peroxides, whereas lucigenin does so only on BaO2. Reactive oxygen species bound firmly to the metal peroxides are thought to be oxidizing agents leading to CL, and were characterized by chemical and ESR methods. From experiments using trappers of the reactive oxygen species, hydroxy(OH) and superoxide (O2-) radicals were suggested to exist stably on the surface of MgO2 and BaO2, respectively. This was confirmed on the basis of the ESR spectra obtained by means of the spin-trapping technique using 5, 5-dimethyl-1-pyrroline-N-oxide (DMPO). A reaction scheme is proposed for the formation of the reactive oxygen species.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 47 (7), 417-422, 1998

    The Japan Society for Analytical Chemistry

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