1. Use methanol to be in progress preserve, the antioxidant putting in does not affect green plain acid and Herb of Grace glucoside separation extremely contents.
    用甲醇进行保存，抗氧化剂的加入不影响绿原酸和芸香苷的分离极其含量。

2. having suggested that the chromatography determines green fresh flue-cured tobacco leaf middle plain acid and Herb of Grace glucoside each other with high-effect liquid.
    摘 要：提出了用高效液相色谱法测定烤烟鲜叶中绿原酸和芸香苷的方法。

3. The back-flow studying result indicates methanol, adopts is abstracted, is uses phosphoric acid two hydrogens potassium and methanol solution to redress as the grad being on the move being in progress each other coming off, can part for the contents determining green fresh flue-cured tobacco leaf middle plain acid and Herb of Grace glucoside fairly good.
    研究结果表明，采用甲醇回流提取，用磷酸二氢钾和甲醇溶液作为流动相进行梯度洗脱，可以较好地分离测定烤烟鲜叶中绿原酸和芸香苷的含量。