100 Clinical Results associated with Ningxia Duowei Pharmaceutical Co., Ltd.
0 Patents (Medical) associated with Ningxia Duowei Pharmaceutical Co., Ltd.
Determination of glycyrrhizic acid in Liuwei Clove Capsule by HPLC
Author: Wang, Chunhong ; Guo, Qianggong ; Lan, Tianjun ; Feng, Yan
To establish an HPLC method for the determination of glycyrrhizic acid in Liuwei Clove Capsule. The samples were separated by C18 column (250 mm × 6 mm, 5 μm) with the mobile phase of 0.05 mol/L potassium dihydrogen phosphate solution-acetonitrile (69:31), the flow rate of 1.0 mL/min and the temperature of 20°. The detection wavelength was at 252 nm. Glycyrrhizic acid showed the good linear relationship within the range of 0.9818-5.8908 μg (r = 0.9997), and the average recovery rate was 98.47% with RSD = 1.44% (n = 6). HPLC is simple, sensitive and reliable. It can be used for the quality control of Liuwei Clove Capsule.
30 Jun 2003·Ningxia Shiyou Huagong
Research on flavone compounds in liquorice
100 Deals associated with Ningxia Duowei Pharmaceutical Co., Ltd.
100 Translational Medicine associated with Ningxia Duowei Pharmaceutical Co., Ltd.