Objective: To detect if Pileostegia tomentellacollected is qualified according to Chinese Pharmacopoeia for advanced study. Method: Use the method of Chinese Pharmacopoeia (2010 edition) to detect the content of water

ash and extract from P. tomentella

investigate the influence of different extract methods and time for extract content. Flavones were extracted with 70% ethanol by reflux and determinated by ultraviolet spectrophotometry

which rutin was taken as control sample. Result: The water content

total ash content and the acid-insoluble ash content was 10.8%

5.2% and 1.2%

respectively. The content of highest water soluble extract is 13.45% by reflux extraction for 40 mins

the highest ethanol-soluble extractives is 11.09% by reflux extraction for 60 mins

the total flavones content is 0.39% with good repeatability. The recovery rate was 102.7% and RSD was 1.76%. Conclusion: The research provide basis of theoretical for the reasonable use

quality control

development and industrialization production.