title: [HPLC Fingerprint Study and Quantitative Determination of Index Components of Pilea aquarum].
abstract: OBJECTIVE
  To establish an HPLC fingerprint and a quantitative determination method for determination of index components of Pilea aquarum.
  
  
  METHODS
  The HPLC fingerprint of Pilea aquarum were determined on an Agilent Zorbax SB-C18 column (250 mm x 4.6 mm, 5 µm), eluted with mobile phase containing of acetonitrile-0.2% acetic acid in a gradient mode. The temperature of column was 30 °C. The flow rate was 0.8 mL/min and the detection wavelength was set at 330 nm. The chromatograms of 24 batches of Pilea aquarum were compared by the software of Similarity Evaluation System for Chromatographic Fingerprint of Traditional Chinese Medicine (version 2004 A). The contents of luteoloside and cosmosiin were also determined simultaneously.
  
  
  RESULTS
  The HPLC fingerprint of Pilea aquarum had been established. There were ten common peaks,two chromatographic peaks of which were identified by reference substances. The samples of Pilea aquarum from different habitats can be distinguished from their fingerprints, the contents of luteoloside and cosmosiin varied greatly.
  
  
  CONCLUSIONS
  This method has desirable precision, stability, repeatability, and can be applied for identification and quality control of Pilea aquarum.
authors.forename: Xiu-hai
authors.initials: XH
authors.lastname: Gan
authors.forename: Zhi-yuan
authors.initials: ZY
authors.lastname: Liang
authors.forename: Jin-zhong
authors.initials: JZ
authors.lastname: Jiang
authors.forename: Xin
authors.initials: X
authors.lastname: Zhou
authors.forename: Chao
authors.initials: C
authors.lastname: Zhao
mesh_terms: D002851:Chromatography, High Pressure Liquid; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D011786:Quality Control; D027003:Urticaceae / Q000737:chemistry*
chemical_list: D004365:Drugs, Chinese Herbal