title: Ultrasonic nebulization extraction-heating gas flow transfer-headspace single drop microextraction of essential oil from pericarp of Zanthoxylum bungeanum Maxim.
abstract: The ultrasonic nebulization extraction-heating gas flow transfer coupled with headspace single drop microextraction (UNE-HGFT-HS-SDME) was developed for the extraction of essential oil from Zanthoxylum bungeanum Maxim. The gas chromatography-mass spectrometry was applied to the determination of the constituents in the essential oil. The contents of the constituents from essential oil obtained by the proposed method were found to be more similar to those obtained by hydro-distillation (HD) than those obtained by ultrasonic nebulization extraction coupled with headspace single drop microextraction (UNE-HS-SDME). The heating gas flow was firstly used in the analysis of the essential oil to transfer the analytes from the headspace to the solvent microdrop. The relative standard deviations for determining the five major constituents were in the range from 1.5 to 6.7%. The proposed method is a fast, sensitive, low cost and small sample consumption method for the determination of the volatile and semivolatile constituents in the plant materials.
authors.affiliation: College of Chemistry, Jilin University, Changchun 130012, China.
authors.forename: Shigang
authors.initials: S
authors.lastname: Wei
authors.forename: Huihui
authors.initials: H
authors.lastname: Zhang
authors.forename: Yeqiang
authors.initials: Y
authors.lastname: Wang
authors.forename: Lu
authors.initials: L
authors.lastname: Wang
authors.forename: Xueyuan
authors.initials: X
authors.lastname: Li
authors.forename: Yinghua
authors.initials: Y
authors.lastname: Wang
authors.forename: Hanqi
authors.initials: H
authors.lastname: Zhang
authors.forename: Xu
authors.initials: X
authors.lastname: Xu
authors.forename: Yuhua
authors.initials: Y
authors.lastname: Shi
mesh_terms: D005591:Chemical Fractionation / Q000379:methods*; D005638:Fruit / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D006358:Hot Temperature; D039821:Monoterpenes / Q000032:analysis; D009822:Oils, Volatile / Q000737:chemistry / Q000302:isolation & purification*; D010938:Plant Oils / Q000737:chemistry / Q000302:isolation & purification*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013010:Sonication; D032106:Zanthoxylum / Q000737:chemistry*
chemical_list: D039821:Monoterpenes; D009822:Oils, Volatile; D010938:Plant Oils