The Study About PEG—(NH_4)_2SO_4—H_2O Two Aqueous Phase System and the Distributing Act of Medication

Objective:Deducing the mechanism of extractioning medication by the change of ultraviolet absorption spectrum in two systems.Methods:By experiment,selecting nonionic surfactant PEG—(NH_4)_2SO_4—H_2O two aqueous phase system and it's conditions of forning phase,studying the distribute act of two medication —PCN、PCNA and CPZ in PEG800—(NH_4)_2SO_4—H_2O and PEG2000-(NH_4)_2SO_4-H_2O two aqueous phase system.Result:CPZ's bout extractability in aqueous phase system is 92.8% and 90.5%.Conclusion:The Two Aqueous Phase System according to this way need not rocker,easy operation,good reproductivity,can proceed to extractioning continuously and expediently.