title: [Determination of monotropein in Radix Morindae from different processed products by HPLC].
abstract: OBJECTIVE
  To determine the contents of monotropein in the different processed Products of Radix Morindae.
  
  
  METHODS
  
  
  
  CONCLUSIONS
  Kromasil C18 (150 mm x 4. 6 mm,5 micorm) column; The mobile phase was methol-0.4% phosphate solution (5:95-->28.8: 71.2, 15 min); The velocity of flow was 1 ml/min; The detection wavelength was at 210 nm; And column temperature was 25 degrees C RESULTS: There were obvious differences between the crude and kinds of different processed products of monotropein in the Radix Morindae, The contents of monotropein from the different processed products (crude drugs, removed from wood, processed with salt, prepared) were 13.92 mg/g,9.10 mg/g, 9.21 mg/g, 12.86 mg/g, respectively.
  
  
  CONCLUSIONS
  The different processing methods can make the contents of monotropein in the Radix Morindae.
authors.affiliation: College of Chinese Materia Medica, Guangzhou University of TCM, Guangzhou 510405, China. twtyfkfqvey@126.com
authors.forename: Ji-yin
authors.initials: JY
authors.lastname: Xu
authors.forename: Ying-jiao
authors.initials: YJ
authors.lastname: Liang
authors.forename: Ping
authors.initials: P
authors.lastname: Ding
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification; D006358:Hot Temperature; D039823:Iridoids / Q000032:analysis*; D032066:Morinda / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D015203:Reproducibility of Results; D013678:Technology, Pharmaceutical / Q000379:methods*
chemical_list: D004365:Drugs, Chinese Herbal; D039823:Iridoids; C507582:monotropein