ABSTRACT
Objective To choose the bestway of extracting procedure of Rhizoma corydalis. Methods The optimal extraction process is selected with the orthogonal design. The content of corydalis B and the yield of extracts were used to evaluate the factor levels. Results The ideal extraction process is:extracted with 75% alcohol for 2 times, first 6 times amount, soaked 0.5 h, refluxed 1.5 h, then 4 times amount, refluxed 1.5 h. Conclusions This extractive condition is the best way.
ABSTRACT
Objective:To establish the quality control standard for corydalis B in Qizhiweitong Tablets.Methods:corydalis B content in Qizhiweitong Tablets was determined by TLC-scanning with a mixture of n-hexane-chloroform-methanol(10∶6∶1) as a developer and dual wavelength reflection sawtooth scanning.Results:The methodological study showed that a good linear correlation existed in the range of 0.1942 to 0.9710?g of the sample applied, and the average recovery was 97.63% (n=5).Conclusion:Trials indicate that this method is reliable, accurate and simple.