Simultaneous Determinations of Four Ingredients in Yiqi Hewei Capsules by HPLC / 医药导报

ABSTRACT

Objective To establish a method for the quantitative determinations of the ingredients in yiqi hewei capsules. Methods RP-HPLC method was used. The separation was performed on a Thermo C18 column with mobile phase consisting of acetonitrile-water (20 80) (pH was adjusted to 3 with glacial acetic acid) at the flow rate of 1. 0 mL·min-1. The detection wavelength was 283 nm. Results The linear ranges were ( 0. 5735 -5. 7360) × 10 -2 mg·mL-1 for baicalin, (0. 1940-1. 9395) × 10 -2 mg·mL-1 for hesperidin, (0. 2051 -2. 0510) × 10 -3 mg·mL-1 for naringin and (0. 2020 -2.0200) ×10 -2 mg·mL-1 for neohesperidin;RSD =0.28%,0.54%,0.54%,0.31%(n =5),respectively. The average recoveries were 103. 94%, 98. 06%, 103. 09%, 95. 67%, respectively. Conclusion The established method is simple, sensitive and accurate,which can be used for the quality control of yiqi hewei capsules.