Study on preparation and determination of Liaojin plastics

Objective: To establish the optimum preparation and determination method of Liaojin plastics through screening different factors.Methods:The Orthogonal Test was applied to optimize the best preparation technology,and the content of peoniflorin in Liaojin plastics was determined by HPLC.Results: The best matrix proportion of plastics was PVA-124 ∶ alcohol∶acetone ∶ distilled water = 1 ∶ 4 ∶2 ∶10;The average recovery of plastics was 98.56%,RSD was 1.66%(n=9),and the average content of six samples was 0.6817 mg/g,RSD was 1.44%.Conclusion:The good quality plastics can be produced through this process.HPLC determination method is simple,reliable and can be used in the quality control of Liaojin plastics.