Abstract:Objective: To explore the optimal separation of the alkaloids from Lotus plumule by selecting appropriate macroporous adsorption resins. Method: To evaluated the separating efficiency by measuring the adsorption ratio, eluting ratio and the concentration of neferine. Result: The LSA-5B macroporous adsorption resin prolided the optimal separating efficiency. The best adsorption capacity was achieved with the following conditions:the concentration of extact liquid was 0.125 g·mL-1 (equivalence to raw material),then the resin was washed by water to remove impurity and alkaloids were desorbed by 50% ethanol. Conclusion: This method is simple, feasible and suitable for industry production.