METHOD HPLC method was used to determine the content of 23 acetyl alisol B in different samples.

方法采高效液相色谱法定各样品中23-乙酰泽泻醇B的含量。

The hydroxyl value of epoxy-containing polyester was determined by analyzing acetification principle and using acetyl chloride as acetifier and methylene chloride as solvent.

通过对其酰化原理分析,选乙酰氯作酰化剂、二氯烷作酰化溶剂,定含环氧基聚酯的羟值。

Methyl thioacetate was prepared by using acetyl chloride and methyl mercaptan as starting raw material in this paper.The yield of product is 69.3%.Itcan be used in seasoning flavor.

对各种调味香精的食香料硫代乙酸酯的合成进行了初步研究，产率达到693％，对所合成的产品做了红外光谱分析和质子核磁共振分析，确定了其化学结构。