Determination of Chitosan by Cathodic Stripping Voltammetry

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A sensitive method for the determination of chitosan (CTS) by cathodic stripping voltammetry is presented. The method exploits a pair of oxidation-reduction peaks of CTS at -0.62 V (<i>vs.</i> SCE) and -0.54 V (<i>vs.</i> SCE), and an enhancement of the peak current of CTS observed in a 0.05 mol l<sup>-1</sup> potassium hydrogenphthalate buffer solution (pH 2.5). The peak current is linear with the concentration of CTS from 5.0 × 10<sup>-7</sup> to 1.5 × 10<sup>-5</sup> g ml<sup>-1</sup>, and the detection limit is 1.0 × 10<sup>-7</sup> g ml<sup>-1</sup>. We studied the characteristics and the mechanism of the electrode reaction, which proved that this process was diffusion controlled. This method was applied to determine the content of CTS in real samples with satisfactory results.

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), 575-578, 2006-04-10 

    The Japan Society for Analytical Chemistry

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各種コード

  • NII論文ID(NAID)
    10018123912
  • 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
    7872003
  • 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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