Estimating accuracy was satisfying.Glycolic acid was extracted with tri-octylamine(TOA) as extraction reagent and chloroform, n-octanol, toluene, xylene as diluent.

• 以三辛胺(TOA)为萃取剂，以氯仿、正辛醇、甲苯、二甲苯为稀释剂对羟基乙酸进行萃取；