一、前言有机化合物中醇羟基及酚羟基的分析广泛采用酰化法。其基本原理是: 即过量的酰化剂用水进行水解生成酸,以标准碱溶液进行滴定。对深色样品则采用 PH电位滴定。此法采用乙酸酐为酰化剂,过氯酸为催化剂,乙酸乙酯为溶剂。由于方法快速及吡啶用量较其他方法少,此法为一些分析工作者所推荐[2～4]。 First, the introduction of organic compounds in the analysis of alcoholic hydroxyl and phenolic hydroxyl widely used acylation. The basic principle is: the excess acylating agent is hydrolyzed with water to generate acid, titrated with standard alkaline solution. For dark samples, PH potentiometric titration is used. This method uses acetic anhydride as acylating agent, perchloric acid as catalyst and ethyl acetate as solvent. Due to the rapid method and less pyridine than other methods, this method is recommended by some analysts [2 ~ 4].