高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (3): 388.

• 研究简报 • 上一篇    下一篇

苯胺极谱测定新方法及其机理研究

韦进宝, 王玉宾, 唐智勇, 肖玫, 张琳   

  1. 武汉大学环境科学系, 武汉, 430072
  • 收稿日期:1996-03-23 出版日期:1997-03-24 发布日期:1997-03-24
  • 通讯作者: 韦进宝, 男, 56岁, 教授.
  • 作者简介:韦进宝, 男, 56岁, 教授.

A New Method For the Determination of Aniline by Polarography and the Studies of Its Mechanism

WEI Jin-Bao, WANG Yu-Bin, TANG Zhi-Yong, XIAO Mei, ZHANG Lin   

  1. Department of Environ.Sci., Wuhan University, Wuhan, 430072
  • Received:1996-03-23 Online:1997-03-24 Published:1997-03-24

关键词: 苯胺, 重氮化, 极谱分析

Abstract: Anew method was developed for the determination of aniline in waste water.Aniline can react with sodium nitrite in the acid medium.Its diazonium products can react continually with sodlum sulfite and formaldehyde.The last reaction products can reduce at the mercury electrode with a sensitive adsorptive wave (Ep=-O.72 V, vs.SCE).The concentration of aniline is linear with peak current in the range of 1.00×10-7 ~ 5.00× 10-4mol/L.The detection limit is 5.00×10-8 mol/L.The behaviour of polarographic wave was studied and the mechanism of electrode reaction was explored.

Key words: Aniline, Diazonium, Polarographic analysis

TrendMD: