Studies on preparation of Radix Polygonum Multiflorum / 中成药

AIM: To investigate the new processing method of Radix Polygonum Multiflorum,determine the content of 2,3,5,4′-stilbene glucoside by HPLC. METHODS: Referring to content of 2,3,5,4′-stilbene glucoside as marker,we have screened out processing time for Radix Polygonum Multiflorum by orthogonal design, by HPLC. RESULTS: 48 h of steaming time can guarantee processing quality of Radix Polygonum Multiflorum. CONCLUSION: The method can be used for processing standard of Radix Polygonum Multiflorum