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Chem. J. Chinese Universities ›› 1998, Vol. 19 ›› Issue (10): 1574.

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Adsorptive Voltammetry Behavior of Trace Dobutamine on Carbon Paste Electrode and Its Determination

YANG Gong-Jun1, JIN Li-Tong1, LENG Zong-Zhou2, CHEN Wen-Jian2   

  1. 1. Department of Chemistry, East China Normal University, Shanghai, 200062;
    2. Department of Chemistry and Chemical Engineering, Teacher's College, Yangzhou University, Yangzhou, 225002
  • Received:1998-04-22 Online:1998-10-24 Published:1998-10-24

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Abstract: Dobutamine is determined by adsorptive voltammetry using a carbon paste electrode in a base solution of 01 mol/L H2SO4. The peak potential of anode is 0.46 V(vs. SCE). There is a good linear relationship between the peak current and the concentration of dobutamine in the range of 30×10-9 ～10×10-6 mol/L. The detection limit of the method is 15×10-9 mol/L. The recovery is 94.00%～102.59%, and the relative standard deviation is 3.1%(n =9). The possible reaction mechanism is discussed.

Key words: Dobutamine, Carbon paste electrode, Adsorptive voltammetry

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