摘要
示波电位滴定具有终点直观、仪器便宜、操作简便、快速、准确等特点。本文将对氢离子响应敏锐、使用寿命长、制备简单的聚苯胺修饰电极(PAME)应用于酸碱示波电位滴定中,使电位突跃更加明显,化学计量点更易判断(与双铂电极体系比较)。
Using polyaniline modified electrode as an indicator electrode and calomel electrodeas a reference electrode, the oscillographic potentiometric acid-base titrations were per-formed successfully in aqueous solutions containing strong acids or bases, weak acids orbases, polyprotontic acids or mixtures of bases. In comparison with biplatinum acid-baseoscillo-potentiometric titration this method gives more distinct potential breaks and thestoichiometric point can be observed easily with good roproducibility.
出处
《应用化学》
CAS
CSCD
北大核心
1990年第1期91-93,共3页
Chinese Journal of Applied Chemistry
关键词
聚苯胺
修饰电极
酸碱滴定
oscillographic potentiometric titration
acid-base titration
polyaniline modified electrode
