Optimization of Extracting Process of Feining Mixture with Orthogonal Design of Multi-indexes / 中国中医药信息杂志

Objective To optimize the extracting process of the mixture of Feining.Methods Orthogonal design was used to optimize extracting process.The content of glycyrrhizicac,Ephedrine and Pseudoephedrin,and the extractive rate of water and n-butyl alcohol were indexes.Results The optimum water-extracting factors were 8 times of water,refluxing and extracting for 1 h,for 2 times.Conclusion The optimal extraction process is precise and repeatable,which can be used in industrial production.

Study on Quality Standard of Jiangya Yishen Granula / 中国中医药信息杂志

Objective To establish a method for quality control of Jiangya Yishen Granula. Methods Spanishneedles Herb, Radix Polygoni Multiflori, Fruetus Corni, Radix Scrophulariae, Rhizoma Alismatis and Radix Cyathula were identified by TLC. A method of HPLC to determine 2,3,5,4’-tetrahydroxystilbene-2-0-?-D-glucosid, the main effective component from Radix Polygoni Multiflori, was developed. Results The studies on the quality control showed that the characteristics for identification by TLC were distinct. The quantification method had the linear range of 0.016 3～0.522 ?g (r=0.999 9). The average recovery rate was 99.7%, and its RSD was 0.51%. Conclusion The methods can be used for the quality control of the preparation.