芦根
2.Result: Four steroids (1, 2, 3, 4) were found in the extracts of Rhizoma Phragmitis.
3.[Ingredients] pumpkin root, mulberry leaf, jade bamboo, Guava leaf, balsam pear, reed root, honeysuckle, tieguanyin tea etc.
4.Results By GC-TOFMS, the ferulic acid was successfully isolated from the extracts of RPC in a relative content of 5%.
5.Objective: To extract and determine the compositions and relative amount of steride in Rhizoma Phragmitis.
6.Objective To make a rapid determination of ferulic acid and identification of its structure in rhizome of Phragmites communis (RPC).

