英语语法分析

Using HPLC to determine the content of emodin and chrysophanol.

采用HPLC法测定方中大黄所含大黄素及大黄酚的含量。

The contents of emodin and chrysophanol were determined by HPLC.

运用高效液相色谱法测定大黄素和大黄酚的含量。

Objective: To determine emodin and chrysophanol in Zhouchewan pills.

目的：测定舟车丸中大黄素和大黄酚含量。