title: [Study on preparation and determination of Liaojin plastics].
abstract: 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%.
  
  
  CONCLUSIONS
  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.
authors.affiliation: The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China. tanghongmei2000@163.com
authors.forename: Hong-Mei
authors.initials: HM
authors.lastname: Tang
authors.forename: De-Tang
authors.initials: DT
authors.lastname: Li
authors.forename: Li-Juan
authors.initials: LJ
authors.lastname: Zhang
authors.forename: Ying-Hua
authors.initials: YH
authors.lastname: Huang
authors.forename: Zhen-Wen
authors.initials: ZW
authors.lastname: Qiu
mesh_terms: D000279:Administration, Cutaneous; D001565:Benzoates / Q000032:analysis* / Q000737:chemistry; D001952:Bridged-Ring Compounds / Q000032:analysis* / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid; D004338:Drug Combinations; D004355:Drug Stability; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification*; D005960:Glucosides / Q000032:analysis* / Q000737:chemistry; D039821:Monoterpenes; D029596:Paeonia / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D010969:Plastics; D011142:Polyvinyl Alcohol / Q000008:administration & dosage / Q000737:chemistry; D011786:Quality Control; D012250:Rheum / Q000737:chemistry; D012869:Skin Absorption; D013678:Technology, Pharmaceutical / Q000379:methods*; D006027:Glycosides
chemical_list: D001565:Benzoates; D001952:Bridged-Ring Compounds; D004338:Drug Combinations; D004365:Drugs, Chinese Herbal; D005960:Glucosides; D039821:Monoterpenes; D010969:Plastics; D011142:Polyvinyl Alcohol; C015423:peoniflorin; D006027:Glycosides