Thermo-sensitive polymer aqueous two-phase extraction is a new and green separation and enrichment technology

this system has the advantages of mild conditions

strong selectivity

high extraction efficiency

short operation time. Recyclable materials simply changing the ambient temperature

the phase forming polymer can be separated from the target separation. It has been used in biological separation

metal ion separation

extraction of active components from natural products

drug separation and so on. In this paper

the formation principle of thermo-sensitive polymer aqueous two-phase system

the research progress of liquid-liquid equilibrium theory of two-phase aqueous phase and its application are briefly introduced. It is hoped that this paper will be helpful and enlightening to further research work.