title: [Comparison of cinnamic acid contents in Rhizoma Typhonii before and after being processed].
abstract: OBJECTIVE
  To compare the diversity of contents of Cinnamic acid in Rhizoma Typhonii before and after being processed.
  
  
  METHODS
  RP-HPLC.
  
  
  RESULTS
  There were great difference of the contents of Cinnamic acid in various batch. The contents degraded after had been processed.
  
  
  CONCLUSIONS
  Cinnamic acid in Rhizoma Typhonii can be separated completely under the condition of RP-HPLC. Precision and reproduction of the method is preferable. The method is simple, convenient, reliability and can be as a kind of method to determine the contents for Rhizoma Typhonii.
authors.affiliation: Henan University of TCM, Zhengzhou 450008, China. zhangz16758@163.com
authors.forename: Zhen-ling
authors.initials: ZL
authors.lastname: Zhang
authors.forename: Zhen-xiang
authors.initials: ZX
authors.lastname: Yang
authors.forename: Hai-ling
authors.initials: HL
authors.lastname: Yang
authors.forename: Yi-shuo
authors.initials: YS
authors.lastname: Wang
mesh_terms: D029064:Araceae / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D002934:Cinnamates / Q000032:analysis* / Q000302:isolation & purification; D004365:Drugs, Chinese Herbal / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification; D035281:Plant Tubers / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D015203:Reproducibility of Results; D013678:Technology, Pharmaceutical
chemical_list: D002934:Cinnamates; D004365:Drugs, Chinese Herbal