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Solid-phase microextraction combined with gas chromatographic/mass spectrometric analysis and separation on a chiral cyclodextrin stationary phase was a rapid, reliable technique for profiling chiral aroma compounds in flavored alcoholic beverages. Several enantiomeric terpenes, esters, alcohols, norisoprenoids, and lactones were identified in berry-, peach-, strawberry-, and citrus-flavored wine and malt beverages (wine coolers). Using this technique, we were able to confirm the addition of synthetic flavoring to several beverages, consistent with label designations.

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Environmental analytical procedures in the United States are largely based on Environmental Protection Agency (EPA) methods. Different procedures have been adopted by the European Union (EU). In the United States, the determination of volatile organic compounds in drinking water employs purge and trap sampling followed by gas chromatography with photoionization and electrolytic conductivity detection. European analysts perform an "equivalent" priority pollutant analysis using static headspace injections and electron-capture detection. Some of the compounds included on the EPA list (1) do not appear on the EU lists (2) and vice versa. A distinctive difference is the use of megabore (greater than 0.45-mm i.d.) capillary columns in the EPA methods. European analysts are reluctant to adopt these columns in their methodologies. In this work, several open-tubular column dimensions are investigated and optimized with particular attention given to problems encountered when columns are interfaced to purge and trap or static headspace analyzers. Also, EPA and EU priority pollutant methods are contrasted according to the method of detection.

This paper describes a GC/MS system capable of performing Volatile Organic Analysis on liquids, solids, and air. When combined with a syringe auto-injector, the system is completely automated for both volatile and semi-volatile analyses. An OI Analytical Model 4551 Vial Multisampler and an OI Analytical DPM-16 Multisampler are interfaced and then connected to an OI Analytical Model 4560 Sample Concentrator, an HP Model 5971 MSD, an HP Model 7673 Auto-Injector, and an HP Model 5890 Series II GC to form a multi-tasking GC/MS system. This system is shown to allow greater versatility in the laboratory.