Qualitative and quantitative analysis of vetiver essential oils by comprehensive two-dimensional gas chromatography and comprehensive two-dimensional gas chromatography/mass spectrometry

•GC×GC techniques applied to the analysis of sesquiterpene derivatives.•Comparative analysis of vetiver oils of different origins by means of GC×GC–MS.•Quantitation of vetiver oil constituents by internal calibration using GC×GC-FID.•Influence of the injection mode on the determined chemical composi...

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