In this paper,carbon bisuphide is used as extractor to extract the residual epihalohydrin from cationic etherified reagent,then the residual epihalohydrin is detected with gas chromatography.

• 本文阐述了先用溶剂二硫化碳萃取阳离子醚化剂中的残余环氧氯丙烷，再用气相色谱法测定其含量的方法。