Application of Novel Sample Preparation/Introduction Techniques in Combination with Multidimensional GC to the Analysis of Alcoholic Beverages

Alcoholic beverages and especially distilled spirits represent a relatively clean matrix and it is possible to avoid costly sample preparation by proper choice of suitable GC sample introduction techniques.

The sample introduction technique can be selected to match the volatility of the target analytes. Sample introduction techniques in combination with a PTV (CIS-4) also offer an instrumental on-line concentration of target analytes from the dominant ethanol water matrix. An entire suite of liquid and gaseous concentration-introduction techniques can be assembled using the Gerstel PTV injector as the focus. Important techniques in this area comprise static and dynamic headspace analysis, large volume injection with solvent venting and stir bar sorptive extraction.

Techniques can also be selectively combined with 2-dimensional heart cutting GC for detection and analysis of low specificity trace components.  These techniques can readily replace classical, more expensive and operator dependent off-line approaches