4. Conclusions
Comparing obtained results for both approaches, SPME-MS provided much better separation of clusters after LDA compared to SPME-GC/MS. As presented here SPME-MS can provide reliable data especially for grape origin of wines. SPME-MS is a very fast method, due to the lack of chromatographic separation, and as a consequence can yield results in a short time, which is particularly important in analysing large sets of samples and replicates required for statistical treatment. Analysis time using SPME-MS is 10 times shorter than for SPME-GC/MS. Moreover, this method does not require a dedicated instrument, but can be used with any GC/MS system after exchanging analytical column for a restricting capillary.