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Analysis of volatile terpenoid compounds in Rhododendron species by multidimensional gas chromatography with quadrupole time-of-flight mass spectrometry
Chenyu Qian;  Wenxuan Quan;  Chaochan Li;  Zhangmin Xiang
2019
Source PublicationMicrochemical Journal
Volume149Pages:1-8
Abstract

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. A total of 34 volatile terpenoid compounds were identified by NIST mass spectral match, and confirmed by accurate mass and retention index (RI). Quantitative analysis was performed with an internal standard (IS) 1,4-cineole. The relative standard deviations (RSD) of most identified compounds were <19.7% for intraday and 18.8% for interday measurements, respectively. Samples from six different Rhododendron species were analyzed, and the results indicated that monoterpenes and their oxygenated derivatives were the major components in all species of Rhododendron, including d-limonene (average 2781.69 μg/kg), followed by p-cymene (average 254.52 μg/kg), linalool (average 224.40 μg/kg), 6-methyl-5-hepten-2-one (average 150.39 μg/kg) and α-terpineol (average 140.17 μg/kg). Additionally, principal component analysis (PCA) was applied to study the detailed 

KeywordRhododendron volatile Terpenoids headspace Solid Phase Microextraction multidimensional Gas Chromatography
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/10844
Collection环境地球化学国家重点实验室
Affiliation1.School of Life Science/Guizhou Provincial Key Laboratory of Mountainous Environmental Protection, Guizhou Normal University, Guiyang, Guizhou, People's Republic of China
2.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou, People's Republic of China
3.Guangdong Institute of Analysis, Guangzhou, Guangdong, People's Republic of China
Recommended Citation
GB/T 7714
Chenyu Qian;Wenxuan Quan;Chaochan Li;Zhangmin Xiang. Analysis of volatile terpenoid compounds in Rhododendron species by multidimensional gas chromatography with quadrupole time-of-flight mass spectrometry[J]. Microchemical Journal,2019,149:1-8.
APA Chenyu Qian;Wenxuan Quan;Chaochan Li;Zhangmin Xiang.(2019).Analysis of volatile terpenoid compounds in Rhododendron species by multidimensional gas chromatography with quadrupole time-of-flight mass spectrometry.Microchemical Journal,149,1-8.
MLA Chenyu Qian;Wenxuan Quan;Chaochan Li;Zhangmin Xiang."Analysis of volatile terpenoid compounds in Rhododendron species by multidimensional gas chromatography with quadrupole time-of-flight mass spectrometry".Microchemical Journal 149(2019):1-8.
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