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Determination of EDTA Species inWater by Second-Derivative Square-Wave Voltammetry Usinga Chitosan-Coated Glassy Carbon Electrode

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Abstract

Based on the adsorption of Fe(EDTA)– on a chitosan-coated glassy carbon electrode, a second-derivative square-wave voltammetry for the determination of the EDTA species in water samples was investigated. The measuring range of EDTA was from 6. 0 × 10–7 to 5. 0 × 10–5 mol/L with a correlation coefficient of 0. 998 and a detection limit of 2. 8 × 10–7 mol/L. The relative standard deviation was less than 6. 2% (n = 5) and the recovery was in the range of 98–105% for the determination of practical samples. The result was consistent with that from the HPLC method.

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Authors and Affiliations

  1. State Key Laboratory of Fine Chemicals, Dalian University of Technology, 158-40 Zhongshan Rd., Dalian, 116012, China

    Changzhi Zhao, Yuzhen Pan, Zhen Guo & Licheng Sun

  2. Department of Chemistry, Liaoning Normal University, 580 Huanghe Rd., Dalian, 116029, China

    Chunxiang He

Authors
  1. Changzhi Zhao
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  2. Yuzhen Pan
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  3. Chunxiang He
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  4. Zhen Guo
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  5. Licheng Sun
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Zhao, C., Pan, Y., He, C. et al. Determination of EDTA Species inWater by Second-Derivative Square-Wave Voltammetry Usinga Chitosan-Coated Glassy Carbon Electrode. ANAL. SCI. 19, 607–610 (2003). https://doi.org/10.2116/analsci.19.607

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  • DOI: https://doi.org/10.2116/analsci.19.607

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