title: [Analysis of the chemical constituents of volatile oil from the Folium Rhododendri Daurici by supercritical CO2 extraction].
abstract: OBJECTIVE
  To compare the chemical constituents of volatile oils from Folium Rhododendri Daurici between supercritical CO2 extraction (SCE-CO2) and steam distillation (SD).
  
  
  METHODS
  The chemical constituents of volatile oils obtained by two methods were analyzed by GC-MS.
  
  
  RESULTS
  52 compounds in the volatile oil extracted by SCE-CO2 and 48 compounds in the volatile oil extracted by SD were separated and identified separately. There were 45 same components.
  
  
  CONCLUSIONS
  The chemical constituents obtained by SCE-CO2 and SD are approached.
authors.affiliation: Heilongjiang Province Key Laboratory of Biological Medicine Formulation, College of Chemistry & Pharmacy, Jiamusi University, Jiamusi 154007, China. univcrs5779@sina.com
authors.forename: Shu-qing
authors.initials: SQ
authors.lastname: Jiao
authors.forename: Feng-hua
authors.initials: FH
authors.lastname: Liu
mesh_terms: D002245:Carbon Dioxide; D025924:Chromatography, Supercritical Fluid / Q000379:methods*; D029791:Ericaceae / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D039821:Monoterpenes / Q000032:analysis; D009822:Oils, Volatile / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification*; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013227:Steam
chemical_list: D039821:Monoterpenes; D009822:Oils, Volatile; D013227:Steam; D002245:Carbon Dioxide