摘要
pH滴定法是指酸碱滴定至某一指定pH值时,即可根据滴定剂浓度、用量及有关公式,计算被测物浓度或含量的方法。本文深入讨论了测定原理、方法和应用。对10种不同极弱酸碱进行了大量测定,测定结果相对误差一般在0.2%左右,相对标准偏差在0.3%左右,达到化学分析要求。pH滴定法具有简便、价廉、快速和通用的优点,为直接滴定极弱酸碱和化学分析仪器化开辟了新的途径。
The principles,method and application of the pH titration of very weak acids or bases are discussed.Ten kinds of samples were measured experimentally,yielding results with relative errors of about 0.3% which meet the requirement of general chemical analysis.The method is simple,cheap and quick,and thus is of potential use.
出处
《分析试验室》
CAS
CSCD
北大核心
1993年第6期45-48,共4页
Chinese Journal of Analysis Laboratory
关键词
PH滴定法
酸
碱
测定
pH titration
determination of very weak acids
determination of very weak bases
