title: [SFE-CGC determination of tanshinone in Salvia miltiorrhiza Bunge].
abstract: OBJECTIVE
  To analyze tanshinone IIA in Salvia miltiorrhiza Bunge by supercritical fluid extraction (SFE) coupled with capillary gas chromatography (CGC).
  
  
  METHODS
  The solution pressure was predicted by solubility parameter theory, the extraction conditions were confirmed by orthogonal design in which temperature, volume of modifier and dynamic extracting volume had been studied in three levels.
  
  
  RESULTS
  This method is quick, convenient, precise and accurate, added sample recovery is 95.3%, RSD = 4.27%.
  
  
  CONCLUSIONS
  Compared with the method of ultrasonic extraction, significantly better qualitative and quantitative result could be obtained by SFE-CGC and expend less organic solvent then make less pollution.
authors.affiliation: School of Pharmacy, Second Military Medical University, Shanghai 200433, China. chenbin-sh@hotmail.com
authors.forename: B
authors.initials: B
authors.lastname: Chen
authors.forename: M
authors.initials: M
authors.lastname: Zhu
authors.forename: W X
authors.initials: WX
authors.lastname: Xing
authors.forename: L L
authors.initials: LL
authors.lastname: Liu
authors.forename: Y T
authors.initials: YT
authors.lastname: Wu
mesh_terms: D045784:Abietanes; D002849:Chromatography, Gas / Q000379:methods; D025924:Chromatography, Supercritical Fluid / Q000379:methods; D010616:Phenanthrenes / Q000032:analysis*; D010946:Plants, Medicinal / Q000737:chemistry*; D027561:Salvia miltiorrhiza / Q000737:chemistry*
chemical_list: D045784:Abietanes; D010616:Phenanthrenes; C021751:tanshinone