CJCU

Chem. J. Chinese Universities ›› 1990, Vol. 11 ›› Issue (4): 363.

• Articles • Previous Articles     Next Articles

Studies on the Adsorptive Stripping Catalytic System of Vanadium ( Ⅴ )

Xu Hongding1, Yu Guirong1, Hu Gaosheng1, Zhang Zhan'en2   

  1. 1. Department of Chemistry, Jilin University, Changchun;
    2. Department of Environment Protection, College of Urban Building and Environment Protection, Suzhou
  • Received:1988-08-25 Online:1990-04-24 Published:1990-04-24

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Abstract: An adsorptive stripping catalytic system of vanadium ( V ) is studied in this paper. Abase solution consists of 1 × 10-5 mol/Lpyrogallol carboxylic acid(HL) and 0. 05 mol/L NaBrO3 in 0. 05 mol/L HAc-NaAc buffer (pH = 5). In this base solution, the complex HVO3L22- was adsorbed onto the DMEat - 0. 15 V(vs SCE). An adsorptive stripping catalytic wave appeared when the electrode potential was scanned to - 0. 9 V. Peak potential was at - 0. 7 Vor so. The peak current was very sensitive. The detection limit of vanadium ( V ) is 6×10-13 mol/L. Using this system for analysis of samples such as natural water, liquor and hair, satisfactory results were obtained.

Key words: Adsorptive stripping catalytic voltammetry, Pyrogallol carboxylic acid, Determination of Vanadium(Ⅴ)

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