摘要

To avoid the traditional and time consuming hydrodistillation, the analyses of volatile components in aerial parts of Echinophora platyloba DC was carried out by a simple microwave distillation followed by headspace single drop microextraction (MD-HS-SDME) coupled to gas chromatography-mass spectrometry (GC-MS). The headspace volatile compounds were collected after irradiation using a single drop of n-heptadecan. The extraction conditions were optimised using the relative peak areas as index. The chemical composition of the MD-HS-SDME extracts was confirmed according to their retention indexes and mass spectra. Fifty-three components were extracted and identified by using the MD-HS-SDME method. E-beta-ocimene (53.81%), R-D-decalactone (12.75%), alpha-pinene (6.43%), n-heptanol (6.27%), beta-phellanderne (2.70%) and linalool (1.89%) were the major constituents.

  • 出版日期2013-5-1

全文