Determination of ginsenoside Rg_1 of different processed products of Radix Notoginseng by HPLC / 中成药

Objective:To compare the effect of different processing methods on the content of Ginsenoside Rg 1 from Radix Notoginseng. Methods: The HPLC method was used for the determination. Chromatographic condition includes: C 18 column, acetonitrile water (45∶55) as a mobile phase, UV detector wavelength at 203nm, 25 ?C column temperature and 0.7 mL?min -1 of flow rate. Results: The content of Ginsenoside Rg 1 of the Radix Notoginseng powder was the highest among all samples. Its recovery was 95.53% and RSD was 2.11% . The correlation coefficient was 0.9999 . Conclusions: It is better to use Radix Notoginseng in the form of the Powder in clinic.