采用四极杆飞行时间质谱多维气相色谱法分析杜鹃属植物中挥发性萜类化合物
Abstract(#br)In this work, an efficient analytical method based on headspace solid phase microextraction (HS-SPME) and multidimensional gas chromatography coupled with simultaneous quadrupole time-of-flight mass spectrometry and flame ionization detection (MDGC-QTOFMS/FID) was established to analyze volatile terpenoids of Rhododendron . The HS-SPME method were optimized for the best extraction efficiency by using divinylbenzene/carboxen/polydimethylsiloxane (DVB/CAR/PDMS) fibers at 70 °C equilibration temperature for 20 min, and extracted for 15 min.