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Authors: Sage J. B. Dunham, Victoria L. Noad, Bailey S. Arakelian & Daniel B. Cardin


  • In the 30 years since the invention of solid phase microextraction (Belardi & Pawliszyn, 1989), headspace (HS) extraction has developed into a powerful family of techniques for both targeted and untargeted chemical analysis of volatile and semi volatile compounds.
  • We recently developed a static HS sampling approach, termed vacuum assisted sorbent extraction (VASE), in which the sample is positioned in a disposable sample vial and placed in a reduced pressure environment with a packed headspace sorbent pen (HSP).
  • Here we describe the methodology behind VASE as well as the application of the technique to examine the chemical composition of a wide assortment of liquid and solid samples.
  • Example applications are shown in the areas of environmental contamination, cannabis consumer products (e.g., edibles, flower), forensics, and alcoholic beverages.

POSTER: Vacuum Assisted Sorbent Extraction (VASE) Thermal Desorption-GC-MS: A Robust, Solvent-Free Technique for Chemical Residue Analysis
Total Files1
Create DateJuly 24, 2019
Last UpdatedJuly 30, 2019