FOOD SCIENCE ›› 2007, Vol. 28 ›› Issue (2): 227-228.

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Study on Determination of Thallium in Vegetables by Differential Pulse Anodic Stripping Voltammetry

 ZHANG  Ping, YAO  Yan, WANG  Zhen-Chun, CHEN  Yong-Heng   

  1. 1. Department of Environmental Science, Guangzhou University, Guangzhou 510006, China; 2. Department of Bioengineering, Guangzhou University, Guangzhou 510006, China
  • Online:2007-02-15 Published:2011-12-31

Abstract: The determination of thallium in vegetables by differential pulse anodic stripping voltammetry with 0.025mol/L NaAc-0.025HAc buffer solution with EDTA was studied. The contents of thallium in the range of 5.0×10-4~1.0×10-1mg/L has a good linear relationship and the detection limit is 1.0×10-4mg/L. Using the method to determine some vegetables, the results showed that the thallium contents of vegetables in thallium pollution soil is apparently higher than that in blane soil.

Key words: vegetable, thallium, differential pulse anodic stripping voltammetry, determination