title: [Content analysis of total polyphenol in the leaves of Jatrophy curcas. L].
abstract: OBJECTIVE
  To establish a method for analyzing the content of total polyphenols in leaves of Jatropha curcas. L.
  
  
  METHODS
  Gallic acid was used as reference substance, the content of total polyphenols was analyzed Folin-Ciocalteu chromatometry.
  
  
  RESULTS
  There was a good linearity for gallic acid in the range of 0.002-0.010 g.L(-1). The content of total polyphenols in the leaves of Jatropha curcas. L was approximately 6.74% with RSD 0.75%. The sample solution was stable during 10-90 min with RSD 0.28%. The precision RSD was 0.23% and the average recovery 99.85% (n=5).
  
  
  CONCLUSIONS
  This method is simple, fast and reproducible.
authors.affiliation: Pharmacy department, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China.
authors.forename: Wen-fei
authors.initials: WF
authors.lastname: Gong
authors.forename: Tie-shan
authors.initials: TS
authors.lastname: Wang
authors.forename: Jing-ming
authors.initials: JM
authors.lastname: Lin
mesh_terms: D019665:Euphorbiaceae / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry*; D059808:Polyphenols / Q000032:analysis* / Q000302:isolation & purification
chemical_list: D059808:Polyphenols