title: [Chemical pattern recognition for HPLC fingerprint analysis of Flos Lonicerae Japonicae in different collecting time].
abstract: OBJECTIVE
  To compare HPLC fingerprint of Flos Lonicerae Japonicae in different collecting time for determining harvest.
  
  
  METHODS
  The data from RP-HPLC were analyzed by similarity evaluation, principle component analysis and system cluster analysis.
  
  
  RESULTS
  The content of chemical composition of Flos Lonicerae Japonicae were vaiance on collecting time. The best harvesting time was the erbai period.
  
  
  CONCLUSIONS
  The study offers the basis of controlling the quality of Flos Lonicerae Japonicae and the realization of good agricultural practice.
authors.affiliation: Henan College of Traditional Chinese Medicine, Zhengzhou 450008, China.
authors.forename: Xiao-ke
authors.initials: XK
authors.lastname: Zheng
authors.forename: Yue
authors.initials: Y
authors.lastname: Wei
authors.forename: Wei-sheng
authors.initials: WS
authors.lastname: Feng
mesh_terms: D002726:Chlorogenic Acid / Q000032:analysis; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D016000:Cluster Analysis; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification / Q000592:standards; D035264:Flowers / Q000737:chemistry / Q000254:growth & development; D031239:Lonicera / Q000737:chemistry* / Q000254:growth & development; D010363:Pattern Recognition, Automated; D010598:Pharmacognosy; D010946:Plants, Medicinal / Q000737:chemistry* / Q000254:growth & development; D011786:Quality Control; D012621:Seasons; D013997:Time Factors
chemical_list: D004365:Drugs, Chinese Herbal; D002726:Chlorogenic Acid