[Qualitative and quantitative studies on Chinese drug maidong].
OBJECTIVE
To explore a better approach to controlling the quality of Maidong.


METHODS
The differences between Ophiopogon japonicus and the plants belonging to Liriope genus were identified by TLC. The total saponins in plants collected from different areas were determined by spectrophotometry, using HClO4 as the staining agent.


RESULTS
The quantity of Maidong markedly varies with producing areas.


CONCLUSIONS
This method is convenient and effective, and the MeOH extract of samples can be determined directly after reaction with HClO4 without preliminary treatment. The RSD was 0.75% (n = 5).
Tang
X
X
China Pharmaceutical University, Nanjing 210038.
Cheng
Z
Z
Yu
B
B
D002855:Chromatography, Thin Layer; D031441:Ophiopogon / Q000737:chemistry* / Q000145:classification; D010946:Plants, Medicinal / Q000737:chemistry* / Q000145:classification; D011786:Quality Control; D012503:Saponins / Q000032:analysis*; D013045:Species Specificity
D012503:Saponins