Determination of content and stability of 2,3,5,4′-stilbene glucoside in prepared Radix Polygoni Multiflori from different areas / 中成药

Objective: To determinate the content and stability of 2,3,5,4′ stilbene glucoside in prepared Radix Polygoni Multiflori from differet areas.Methods:The content of 2,3,5,4′ stilbene glucoside was determined by HPLC, and the test of its stability was carried out on high temperature and 60 Co ? ray radiation. Results: The contents of 2,3,5,4′ stilbene glucoside in prepared Radix Polygoni Multiflori from different areas varied from 0.127% to 4.150%. 2,3,5,4′ stilbene glucoside was unstable under high temperature especially in solution, but it was stable under 60 Co ? ray radiation. Conclusion: The qualities of prepared Radix Polygoni Multiflori are different in different areas.