Analysis of beverage samples using thin film solid phase microextraction (TF-SPME) and thermal desorption GC/MS
Brand name alcoholic and non-alcoholic beverages are unique; each aroma and flavor profile is composed from a wide range of volatile and semi-volatile flavor compounds…
To protect the brand, consistent product quality must be ensured. Reliable routine monitoring of such a complex matrix can pose an analytical challenge, even more so when off-flavors must be determined at ultra-low concentrations.
Thin Film Solid Phase Micro-Extraction (TF-SPME) is an extension of regular SPME. The increased surface area and phase volume result in improved analyte recovery and significantly improved sensitivity and accuracy. TF-SPME is simple, requires little or no solvent, and encompasses a wide range of analyte concentrations, polarities, and functional groups.
TF-SPME can be performed in headspace or immersion mode followed by automated thermal desorption GC/MS. The work presented here demonstrates the application of TF-SPME to the determination of aroma and flavor components in various beverages.
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