title: [Determination of protocatechuic acid in Blumea riparia (Bl.) DC. by RP-HPLC].
abstract: OBJECTIVE
  To determine the content of protocatechuic acid in Blumea riparia by RP-HPLC.
  
  
  METHODS
  mu-Bondapak C18 column was used, mobile phase consisted of methanol-water-glacial acetic acid(19:80:1) and detection was performed at UV 260 nm.
  
  
  RESULTS
  The standard curve was linear in the range of 3.31-41.8 micrograms.ml-1. The correlation coefficient was 0.9999. The average recovery rate and RSD were 98.05% and 1.94% (n = 6) respectively.
  
  
  CONCLUSIONS
  The method provides scientific indexes for quality control of riparia.
authors.affiliation: Guangxi Provincial Institute for Drug Control, Nanning 530021, Guangxi, China.
authors.forename: P D
authors.initials: PD
authors.lastname: Xie
authors.forename: T
authors.initials: T
authors.lastname: Sang
authors.forename: X Z
authors.initials: XZ
authors.lastname: Gong
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D062385:Hydroxybenzoates / Q000032:analysis*; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D062385:Hydroxybenzoates; C009091:protocatechuic acid