Figure 2

Comparison of PTR-ToF-MS mass spectra (left side) and GC × GC-ToF-MS chromatograms (right side).
Upper panels are measurements of “Herbs de Provence” and lower panels of black pepper. GC × GC-ToF-MS chromatograms derive from volatilizing the seasoning at 180 °C. PTR-ToF-MS mass spectra derive from frying the seasoning together with meat at 180 °C.