Second Chemiluminescence Behavior of Fe^<2+>, Fe^<3+> and Cr^<3+> in the Luminal-KMnO_4 System

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A novel flow injection chemiluminescence (CL) method has been developed for the determination of three metal ions, namely Fe<sup>2+</sup>, Fe<sup>3+</sup> and Cr<sup>3+</sup>, based on the second CL (SCL) signal of the mixture of luminal with KMnO<sub>4</sub> in a sodium hydroxide medium by the catalysis of Fe<sup>2+</sup>, Fe<sup>3+</sup> or Cr<sup>3+</sup>. The possible CL mechanism of the systems, the influencing factors, and the optimum conditions for the reactions were investigated based upon the kinetic curve of the CL reaction, CL spectra, UV-visible spectra and some other experiments. Under the optimum conditions, the SCL intensity was directly proportional to the concentration of these metal ions in solution in the range of 0.10 - 100.00 mg l<sup>-1</sup> for Fe<sup>2+</sup>, 0.50 - 7.50 and 7.50 - 200.00 mg l<sup>-1</sup> for Fe<sup>3+</sup>, 0.01 - 0.25 and 0.25 - 10.00 mg l<sup>-1</sup> for Cr<sup>3+</sup>. The detection limits (3 <i>σ</i>/<i>s</i>) were 9.87 × 10<sup>-6</sup> g l<sup>-1</sup>, 2.71 × 10<sup>-6</sup> g l<sup>-1</sup> and 5.25 × 10<sup>-7</sup> g l<sup>-1</sup> for Fe<sup>2+</sup>, Fe<sup>3+</sup> and Cr<sup>3+</sup>, respectively.

収録刊行物

  • Analytical sciences : the international journal of the Japan Society for Analytical Chemistry

    Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 22(4), 621-625, 2006-04-10

    The Japan Society for Analytical Chemistry

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各種コード

  • NII論文ID(NAID)
    10018124129
  • NII書誌ID(NCID)
    AA10500785
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09106340
  • NDL 記事登録ID
    7872116
  • NDL 雑誌分類
    ZP4(科学技術--化学・化学工業--分析化学)
  • NDL 請求記号
    Z54-F482
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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