英语语法分析

Aim To establish a method for detecting isorientin and orientin by HPLC.

目的建立紫果西番莲叶提取物中异荭草素和荭草素的含量测定方法。

Method: Ethylaeetate extraction and polyamide chromatography isolation was used to isolate orientin.

方法：采用醋酸乙酯萃取-聚酰胺柱色谱分离荭草苷。