高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (6): 564.

• 论文 • 上一篇    下一篇

三角波交流示波极谱的研究(Ⅰ)——示波极谱图的性质

祁洪, 马新生, 高鸿   

  1. 南京大学化学系
  • 收稿日期:1986-12-30 出版日期:1988-06-24 发布日期:1988-06-24
  • 通讯作者: 祁洪

Investigation on Triangular-wave AC Oscillopolarography(Ⅰ)——Properties of Triangular-wave AC Oscillopolarogram

Qi Hong, Ma Xinsheng, Gao Hong(H. Kao)   

  1. Department of Chemistry, Nanjing University, Nanjing
  • Received:1986-12-30 Online:1988-06-24 Published:1988-06-24

摘要: 用三角波电流代替正弦波电流,进行交流示波极谱滴定,所得示波极谱图与正弦波结果相似。对一些离子的滴定表明,两法所得结果均在定量分析允许误差范围以内。报道了三角波交流示波极谱图的一些性质。

关键词: 交流示波极谱, 三角波电流扫描

Abstract: Triangular-wave current sweeping was used in ACoscillopolarography instead of sine-wave current. The oscillopolarogram obtained is similar to that obtained with sine-wave current. The appearance or disappearance of incision on the oscillopolarogram can be used to indicate the end-point of titration. The relationship of incision height hi to the concentration of depolarizer and current sweeping rate Vare respectively as follows.hi(mV) = -0.02300 + 4.702×10-4C0*(-2/3) hi(mV)= -0.02807 +950.68V(2/3) When Vis very lower 5.0×10-9mol/L Tl+ ion can be determined by this method

Key words: AC Oscillopolarography, Triangular-wave current sweeping

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