Comparative Study on Dissolution of the Total Flavones in Pollen Typhae Before and After Wall Breaking / 中药新药与临床药理

Objective Dissolution test was applied to study the dissolution rates of total flav ones from Pollen Typhae before and after wall breaking.Methods The content of total flavones was determined by UV -spectrophotometry an d Basket -Stirring Method.Results Using total flavones as the index,T 50 was 29.57min and T d was 41.28min before wall break-ing,and 41.27min and 54.26min respectively after wall breaking,the dif ference being very significant.Conclusion The dissolution rate of the total fla vones from Pollen Typhae is faster after wall -breaking treatment than th at before treat-ment.