title: [Determination of carvacrol and thymol in Mosla chinensis by HPLC].
abstract: OBJECTIVE
  To establish a quantitative method of determination of carvacrol and thymol in Mosla chinensis.
  
  
  METHODS
  The sample was extracted with 95% ethanol, ODS column was used with methanol-water-acetic acid (60:40:2) as mobile phase. The detection wavelength was set at 274 nm.
  
  
  RESULTS
  The linearities of carvacrol and thymol were respectively in the range of 0.23-2.15 microg (r = 0.9999) and 0.39-2.36 microg (r = 0.9999); the average recoveries were 99.9% (RSD 1.4%) and 98.6% (RSD 1.3%); the RSD of repeatability were 1.1% and 1.6%.
  
  
  CONCLUSIONS
  The method is reliable, and can be used for quality control of M. chinensis.
authors.affiliation: Institute of Chinese Materia Medica, China Academy of Traditional Chinese Medicine, Beijing 100700, China.
authors.forename: Li
authors.initials: L
authors.lastname: Ji
authors.forename: Fang
authors.initials: F
authors.lastname: Wang
authors.forename: Yuan-yan
authors.initials: YY
authors.lastname: Liu
authors.forename: Yan
authors.initials: Y
authors.lastname: Tong
authors.forename: Xian-duan
authors.initials: XD
authors.lastname: Li
authors.forename: Xue-feng
authors.initials: XF
authors.lastname: Feng
authors.forename: Lu-qi
authors.initials: LQ
authors.lastname: Huang
authors.forename: Guo-ping
authors.initials: GP
authors.lastname: Zhou
mesh_terms: D002851:Chromatography, High Pressure Liquid; D000081007:Cymenes; D019686:Lamiaceae / Q000737:chemistry*; D039821:Monoterpenes / Q000032:analysis*; D035261:Plant Components, Aerial / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011786:Quality Control; D013943:Thymol / Q000032:analysis*
chemical_list: D000081007:Cymenes; D039821:Monoterpenes; D013943:Thymol; C073316:carvacrol