title: [Study on quality standard of extracts from Rhizoma Zingiberis by supercritical fluid extraction].
abstract: OBJECTIVE
  To establish the quality standard of extracts from Rhizoma Zingiberis by supercritical CO2 fluid extraction.
  
  
  METHODS
  The extracts were identified by TLC. The total phenols and the 6-gingerol were determined by dual-wavelength UV spectrophotometry and HPLC separately.
  
  
  RESULTS
  The recovery of total phenols was 97.7% (RSD 2.0%). The linear range of 6-gingerol is 0.20-2.0 microg, the average recovery was 97.7% (RSD 2.0%).
  
  
  CONCLUSIONS
  The method is convenient for a good resolution and can be used for the quality control of extracts from Rhizoma Zingiberis.
authors.affiliation: Institute of Drug Research, Guangdong College of Pharmacy, Guangzhou 510224, China. mj101063@21cn.com
authors.forename: Qing
authors.initials: Q
authors.lastname: Meng
authors.forename: Yi-fan
authors.initials: YF
authors.lastname: Feng
authors.forename: Xiao-ling
authors.initials: XL
authors.lastname: Guo
authors.forename: Geng-fu
authors.initials: GF
authors.lastname: Chen
authors.forename: Jian-cong
authors.initials: JC
authors.lastname: Cai
mesh_terms: D002396:Catechols; D025924:Chromatography, Supercritical Fluid / Q000379:methods*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D005233:Fatty Alcohols / Q000032:analysis; D020939:Zingiber officinale / Q000737:chemistry*; D010636:Phenols / Q000032:analysis*; D010946:Plants, Medicinal / Q000737:chemistry*; D011786:Quality Control; D027343:Rhizome / Q000737:chemistry
chemical_list: D002396:Catechols; D004365:Drugs, Chinese Herbal; D005233:Fatty Alcohols; D010636:Phenols; C007845:gingerol