A preliminary study on quality standard and stability forQizhu-Fuzheng Yin / 国际中医中药杂志

Objective To establish the quality standard ofQizhu-Fuzheng Yin, and to conduct a preliminary study on its stability.Methods Corydalis tuber and licorice were identified by TLC. The content of astragaloside was determined by UPLC-ELSD. The initial stability was studied by accelerated test method. Results The spots on TLC plates were clear without interference in the blank reference. The response of astragaloside was linear in the ranges of 36.5-365.0 μg/ml (r2=0.999 2), and the average recovery was 102.8 %, and theRSD was 2.4%. After 1, 2, 3, 6 months tests, the average contents of 3 batches astragaloside were 61.6, 60.4, 60.6μg/ml.ConclusionQizhu-Fuzheng Yin was simple preparation, quality control and stability.