Comparison of aroma compounds in whisky by SPME–GCxGC–TOF MS/FID
This study demonstrates the high performance of a flow-modulated GCxGC–TOF MS system, coupled with sample preparation by solid-phase micro-extraction (SPME), for the separation and identification of trace volatiles in three brands of whisky.
The investigation uses the INSIGHT® reverse-fill/flush device from SepSolve, which allows separation of volatiles ranging from C1 to C40 (and above), the flexibility to change the loop volume in method optimisation, and additional options including heart-cutting, backflushing, and splitting for simultaneous detection. Also highlighted is the use of ChromSpace software to analyse the GCxGC data generated.