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Determination of tyrosine traces by adsorption voltammetry of its copper (II) complex

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Abstract

The electrochemical behavior of the copper-tyrosine complex has been studied by linear-sweep adsorption voltammetry. In 0.02 mol/L Na2HPO4 buffer solution (pH=9.6), the complex can be adsorped on a hanging mercury drop electrode and reduced at a peak potential of about −0.42 V (vs. SCE). The secondary derivative peak height is linear proportional to the concentration of tyrosine in the range 1.0×10−7–5.0×10−5 mol/L. The detection limit is 5×10−8 mol/L.

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Authors and Affiliations

  1. Department of Chemistry, Shandong University, 250100, Jinan, Shandong, People's Republic of China

    Lizeng Wang, Chengsong Ma, Xiaoli Zhang, Yibing Ren & Yong Yu

Authors
  1. Lizeng Wang
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  2. Chengsong Ma
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  3. Xiaoli Zhang
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  4. Yibing Ren
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  5. Yong Yu
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Project supported by the Provincial Science Foundation of Shandong Province

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Wang, L., Ma, C., Zhang, X. et al. Determination of tyrosine traces by adsorption voltammetry of its copper (II) complex. Fresenius J Anal Chem 351, 689–691 (1995). https://doi.org/10.1007/BF00323351

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  • DOI: https://doi.org/10.1007/BF00323351

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