Method for preparing stibene glucoside from polygonum multiflorum by rapid separation

The invention relates to a method for preparing stibene glucoside from polygonum multiflorum by rapid separation and belongs to the technical field of extraction and separation of stibene glucoside. According to the invention, the stibene glucoside product is prepared by using raw polygonum multiflorum as the raw material through the steps of preparing extract of the raw material, degreasing the extract of the raw material and preparing a crude product and a fine product of stibene glucoside. The method has the characteristics of high extraction efficiency, simple separation preparation process, rapid and time-saving separation process, high purity and good reproducibility of the prepared product, sufficient utilization of the raw material, low production cost and the like. The method can be widely applied to preparation of the stibene glucoside product from polygonum multiflorum by separation and can effectively meet the requirement on preparation of a high-purity sample in the conventional pharmacodynamic experimental research.