title: [Analyze on HPLC fingerprint of four main metropolis of herba pogostemonis].
abstract: OBJECTIVE
  To establish a method for analyzing HPLC fingerprint of Herba pogostemonis and compare the variability of four main producing areas.
  
  
  METHODS
  Diamonsil (R) C18 column was used, the Methanol-0.1% phosphoric acid (gradient elution) as a mobile phase and detection wavelength was set at 254nm, column temperature was 25 degrees C and flow rate was 1.0 ml/min.
  
  
  RESULTS
  There were differences between the HPLC fingerprint of Herba pogostemonis from various places of production. The similarity of Herba Pogostemonis cultivated in tow regions of Zhaoqing Gaoyao and Guangzhou Huangcun was over 90%, and there were more differences among them with Zhanjiang Wuchuan and Hainan Wanning.
  
  
  CONCLUSIONS
  The method is reliable and accurate. The method can be used for the identification of the crude drug and the evaluation of its quality.
authors.affiliation: The Department of Pharmacy, General Hospital of Guangzhou Military Command, Guangzhou 510010, China. huangmutu@126.com
authors.forename: Mu-Tu
authors.initials: MT
authors.lastname: Huang
authors.forename: Ji-Peng
authors.initials: JP
authors.lastname: Luo
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000592:standards; D019686:Lamiaceae / Q000737:chemistry* / Q000254:growth & development; D000432:Methanol; D035261:Plant Components, Aerial / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry* / Q000254:growth & development; D011786:Quality Control; D015203:Reproducibility of Results; D012997:Solvents / Q000737:chemistry
chemical_list: D004365:Drugs, Chinese Herbal; D012997:Solvents; D000432:Methanol