摘要
本文叙述了用pH滴定直接测定水溶液中苯酚含量的简便而快速的新方法。它基于苯酚在水溶液中存在弱的解离平衡,在一定pH条件下,不同浓度溶液中酸根的分布系数相等。检出限达2.4×10^(-4)mol/L。精密度及准确度符合一般仪器分析要求。
A method for the direct determination of phenol by pH titration has been developed. It utilizes the partial dissociation of the weak acid, which has not been exploited for analytical purposes thus far. This method has advantages of simplicity, cheapness and rapidity. In aqueous medium, phemol contents in the range of 2.4×1(T^(-4)~8.0×10^(-3)mol/L can be determined.
出处
《分析试验室》
CAS
CSCD
北大核心
1990年第6期39-41,共3页
Chinese Journal of Analysis Laboratory
