ABSTRACT
Objective To establish a method for quality control of Shenbo Fuyanning suppositories. Methods Sophorae flavescentis Radix, Rhizoma dioscoreae Hypoglaucae, and Cnidii fructus were identified by thin layer chromatography ( TLC) , and the content of berberine hydrochloride was determined by HPLC. Results The TLC spots were clear and the negative control had no interference.Berberine hydrochloride had a linear relationship in the range of 0.079-0.790 μg, and the average recovery was 99.3%(RSD=0.70%,n=6). Conclusion The method is accurate, reliable and feasible, and can be used in the quality control of the Shenbo Fuyanning suppository effectively.
ABSTRACT
To establish an optimized determination method for the alkaloids peimine and peiminine in three varieties of Fritillaria. Methods:The samples were refluxed in a mixed solution, the pH value of the mixed solution was adjusted, and then the solution was extracted by ether to obtain the test solution. A Shim-pack VP-ODS column (4. 6 mm × 250 mm,5 μm) was used, the mobile phase consisted of acetonitrile-0. 02% diethylamine(75∶25), and the flow rate was 1. 0 ml·min-1. An Alltech 2000ES ELSD detector was used, the drift tube temperature and the flow rate of nitrogen carrier gas in the ELSD was set at 93℃ and 2. 4 L·min-1 , respectively. The regression equation was calculated between the logarithm values of the reference solution concentration and the corre-sponding peak area. Results:The method could effectively extract the alkaloids from the samples. Peimine and peiminine were well separated by the method, and showed good linearity within the respectively given ranges. The average recovery of the alkaloids in the three varieties of Fritillaria was within the range of 95. 22%-103. 51%. Conclusion: The method is simple,convenient and universal with easy operation,which provides references for the determination of alkaloids in the other varieties of Fritillaria.