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Ultrasound-Assisted Emulsification Microextraction Combined with Gas Chromatography-Mass Spectrometry for the Analysis of Chemical Constituents in Aromatic Water from Alpinia katsumadai Hayata

YE Zhi-yong,LI Zu-guang,DENG Feng-tao,JING Gang,WANG Fang   

  1. 1. College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, China;
    2. Focused Photonics (Hangzhou) Inc. Hangzhou 310052, China
  • Online:2013-12-25 Published:2014-01-03

Abstract:

A novel method using a polyethylene Pasteur pipette, ultrasound-assisted emulsification microextraction
(USAEME) with low density organic solvent (n-hexane) was successfully developed for the analysis of chemical constituents
in aromatic water from Alpinia katsumadai Hayata by gas chromatography-mass spectrometry (GC-MS). Factors affecting
the extraction process, such as the type and volume of extraction solvents and extraction time, were optimized. The optimum
extraction conditions were found as follows: extraction of 1 mL of aromatic water with 80 μL of n-hexane for 10 min.
Meanwhile, 52 volatile compounds were identified in this study, with eucalyptol (28.06%), 3-phenyl-2-butanone (22.69%),
methyl cinnamate (9.34%), α-terpineol (7.51%), linalool (4.48%), borneol (4.11%), 4-terpineol (3.40%) and myrtenol
(3.77%) being the major volatile compounds in the aromatic water. The USAEME technique proved to be a simple, efficient,
cheap and environment-friendly method for the determination of chemical components in the aromatic water.

Key words: ultrasound-assisted emulsification microextraction (USAEME), low density organic solvent, gas chromatography-mass spectrometry (GC-MS), aromatic water, Alpinia katsumadai Hayata