极弱酸(碱)的交流示波滴定——二次微分法  

DIRECT TITRATION OF VERY WEAK ACIDS AND BASES--d^2E/dt^2-E CURVES OSCILLOGOLAROGRAPHIC TITRATION

作　　者：陈扬[1] 翁筠蓉[1] 高鸿[1] 

机构地区：[1]南京大学化学系,南京210008

出　　处：《化学研究与应用》1991年第2期34-40,共7页Chemical Research and Application

基　　金：国家自然科学基金

摘　　要：本文采用交流示波滴定二次微分技术(d^2E/dt^2～E)发现了5种新的碱性范围内的示波中和滴定指示剂。在水溶液中直接滴定了有机弱酸及有机弱碱的盐类药物。Five new indicators for oscillopolarographic titration of very weak acids (or kases) and its salts are given. d^2E/dt^2-E curves are used. Compared with (dE/dt)-E curves, the end- point observed becomes sharper. These indicators have keen used in determination of drugs.

关 键 词：示波滴定 二次微分 极弱酸(碱) 

分 类 号：O6[理学—化学]