摘要
本文采用双聚苯胺修饰电极进行示波双电位滴定,用示波器直接指示△E的变化,以示波器荧光屏上荧光点最大位移指示终点。方法简便、快速、直观,用于乙二醛母液中混合酸的连续滴定,结果满意。
Double polyaniline modified electrodes were used as indicator electrodes for the oscillographic bipotentiometric titration of acid mixture with NaOH. The sudden change of potential difference (△E) between two indicator electrodes at the end point was observed with an oscillograph. The method has remarkable advantages over the ordinary potentiometric titration.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1992年第2期173-175,共3页
Chinese Journal of Analytical Chemistry
关键词
混合酸
示波双电位法
化学修饰电极
Oscillographic bipotentiometry, Polyaniline modified electrode, Titration of acid mixture
