title: Supercritical fluid extraction for identification and determination of volatile metabolites from Angelica dahurica by GC-MS.
abstract: The volatile components of Angelica dahurica were obtained by supercritical fluid extraction (SFE) method. These oils obtained were analyzed by GC-MS (identification and determination of metabolites). The compounds were identified according to their retention indices and mass spectra (electron impact (EI), 70 eV). The effects of different parameters, such as pressure, temperature, flow rate of CO(2), and the amount of modifier, on the SFE of A. dahurica oil were investigated. A total of 50 compounds of SFE extracts were identified. Phellopterin (PO), isoimperatorin (IO), imperatorin (IM), alloimperatorin (AM), byakangelicin, isooxypeucedanin, and pimpinellin were the major coumarin compounds identified in A. dahurica SFE extracts. The quantitations of PO, IO, IM, and AM were then accomplished. The calibration curves showed good linearity (R(2) >0.99) in the concentration ranges tested. The recoveries were higher than 85%, with RSDs less than 10%. The GC-MS method was successfully validated and applied to the quantitation of A. dahurica.
authors.affiliation: Affiliated Dongfeng Hospital, Yunyang Medical College, Hubei, PR China. cqh77@163.com
authors.forename: Qinhua
authors.initials: Q
authors.lastname: Chen
authors.forename: Peng
authors.initials: P
authors.lastname: Li
authors.forename: Jing
authors.initials: J
authors.lastname: He
authors.forename: Zhuo
authors.initials: Z
authors.lastname: Zhang
authors.forename: Jia
authors.initials: J
authors.lastname: Liu
mesh_terms: D029969:Angelica / Q000737:chemistry*; D025924:Chromatography, Supercritical Fluid / Q000295:instrumentation / Q000379:methods*; D008401:Gas Chromatography-Mass Spectrometry / Q000295:instrumentation / Q000379:methods*; D008516:Medicine, Chinese Traditional; D015394:Molecular Structure; D009822:Oils, Volatile / Q000032:analysis*; D010936:Plant Extracts / Q000737:chemistry*; D010938:Plant Oils / Q000032:analysis*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D009822:Oils, Volatile; D010936:Plant Extracts; D010938:Plant Oils