Oral liquid clarification process want to be treated by membrane method, what membrane should be used?

Oral liquid is a commonly used proprietary Chinese medicine, the production requirements are very strict. The molecular mass of the active ingredient of oral liquid is small, while the molecular mass of the ineffective ingredient is large, using ceramic ultrafiltration membrane technology can be based on the molecular weight size, structure, temperature of the liquid, concentration, pH, viscosity, etc., choose different pore size of the membrane and operating parameters, to selective sieving principle of the membrane, retention of large molecule impurities through the small molecules of the active ingredient, to achieve the clarification and filtration of the liquid to improve the quality of the product.