聚苯胺修饰电极酸碱示波电位滴定法——Ⅰ.水溶液中的酸碱滴定  

OSCILLOGRAPHIC POTENTIOMETRIC ACID-BASE TITRATION WITH POLYANILINE MODIFIED ELECTRODE Ⅰ.ACID-BASE TITRATION IN AQUEOUS SOLUTION

作　　者：胡效亚[1] 冷宗周[1] 

机构地区：[1]扬州师范学院化学系,扬州225002

出　　处：《应用化学》1990年第1期91-93,共3页Chinese Journal of Applied Chemistry

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.

关 键 词：聚苯胺 修饰电极 酸碱滴定 

分 类 号：O655.22[理学—分析化学]