title: [Determination of 5-hydroxy-7-methoxyflavan in Daemonorops draco by HPLC].
abstract: OBJECTIVE
  To establish a method for the determination of 5-hydroxy-7-methoxyflavan in Daemrnonorops draco by HPLC.
  
  
  METHODS
  Dikma Diamonsil C15 column(4. 6 mm x 150 mm, 5 microm) was used. The mobile phase consisted of (60:40). The temperature of column was 30 degrees C. The flow rate was 1:0 mL x min(-1) and the detection wavelength was at 210 nm.
  
  
  RESULTS
  The calibration curve was in good linearity with in the range from 0.01 to 0.10 microg (r = 0.9999). The average recovery was 100.1% (n=6).
  
  
  CONCLUSIONS
  The method is simple, rapid, as well as precise and reliable, and can be used for the determination of 5-hydroxy-7-methoxyflavan in D. draco.
authors.affiliation: Institute of Chinses Materia Medica, China Academy of Traditional Chinese Medicine, Beifing 100700, China. fuoo126@sina.com
authors.forename: Meihong
authors.initials: M
authors.lastname: Fu
authors.forename: Jing
authors.initials: J
authors.lastname: Fang
authors.forename: Hongjun
authors.initials: H
authors.lastname: Yang
authors.forename: Zhuju
authors.initials: Z
authors.lastname: Wang
authors.forename: Liying
authors.initials: L
authors.lastname: Tang
authors.forename: Luqi
authors.initials: L
authors.lastname: Huang
authors.forename: Lan
authors.initials: L
authors.lastname: Yang
authors.forename: Dong
authors.initials: D
authors.lastname: Zhang
mesh_terms: D028023:Arecaceae / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D044950:Flavanones / Q000032:analysis*; D010936:Plant Extracts / Q000032:analysis*
chemical_list: D044950:Flavanones; D010936:Plant Extracts; C411294:pinostrobin