title: [Infrared spectral identification of rhizoma Corydalis and rhizoma Corydalis repentis].
abstract: OBJECTIVE
  To study the IR spectra of Rhizoma Corydalis and Rhizoma Corydalis Repentis.
  
  
  METHODS
  The petroleum ether, ethyl ether and water extracts obtained by the same isolating procedure from Rhizoma Corydalis and Rhizoma Corydalis Repentis were determined by IR spectrophotometry.
  
  
  RESULTS
  The IR spectral evidences of the two samples showed distinct characteristics and good repeatability.
  
  
  CONCLUSIONS
  The IR spectral evidences can be used to differentiate Rhizoma Corydalis and Rhizoma Corydalis Repentis.
authors.affiliation: Faculty of Pharmaceutical Sciences, Shandong Medical University, Jinan 250012.
authors.forename: J
authors.initials: J
authors.lastname: Tian
authors.forename: Y
authors.initials: Y
authors.lastname: Chen
authors.forename: J
authors.initials: J
authors.lastname: Ren
authors.forename: H
authors.initials: H
authors.lastname: Lou
authors.forename: Y
authors.initials: Y
authors.lastname: Gao
mesh_terms: D031311:Corydalis / Q000737:chemistry* / Q000145:classification; D004340:Drug Contamination; D004365:Drugs, Chinese Herbal / Q000032:analysis*; D010946:Plants, Medicinal / Q000737:chemistry* / Q000145:classification; D011786:Quality Control; D027343:Rhizome / Q000737:chemistry; D013045:Species Specificity; D013055:Spectrophotometry, Infrared
chemical_list: D004365:Drugs, Chinese Herbal