Detailed characterisation of essential oils by flow-modulated GCxGC and Tandem Ionisation mass spectrometry

In this study, flow-modulated GCxGC–TOF MS with Tandem Ionisation is used to characterise essential oils in fine detail, allowing the in-depth comparison of their compositions that aids rigorous quality control, particularly in the fragrance industry.

Tandem Ionisation provided two complementary data sets from a single analysis – one containing 70 eV data, and the other with soft EI for enhanced molecular ions and improved speciation of isomers. This capability is illustrated by comparing a range of essential oils by flow-modulated GCxGC–TOF MS, combined with multivariate statistical analysis for fast evaluation of compositional differences.

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