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

In this study, flow-modulated GC×GC–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.

Comparison of terpene mass spectra using Tandem Ionisation

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 GC×GC–TOF MS, combined with multivariate statistical analysis for fast evaluation of compositional differences.

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