高等学校化学学报

高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (4): 363.

• 研究论文 • 上一篇    下一篇

钒(Ⅴ)的吸附溶出催化体系的研究

许宏鼎1, 于桂荣1, 胡高升1, 张占恩2   

  1. 1. 吉林大学化学系;
    2. 苏州城建环保学院环保系
  • 收稿日期:1988-08-25 出版日期:1990-04-24 发布日期:1990-04-24
  • 通讯作者: 许宏鼎
  • 基金资助:

    国家自然科学基金

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

PDF (PC)

被引次数

22

摘要： 研究了线性扫描伏安法中钒(Ⅴ)的吸附溶出催化行为体系,借以分析环境、食品和生物样品。钒浓度与峰电流在10-6～10-12mol/L间按数量级分段成线性关系。最低检出限为6×10-13mol/L,相对标准偏差在8％以下,干扰较少。

关键词: 吸附溶出催化伏安法, 没食子酸, 钒(Ⅴ)的测定

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)

TrendMD: