The characterization of odorants is performed using gas chromatography-olfactometry (GC-O) coupled with mass spectrometry (MS). The use of GC-O enables clear distinction between odorous substances, including off-odors, and non-odorous substances. The analysis also enables direct comparison of different samples and identification of undesired components.
The identification of odorous trace components is performed using high performance two-dimensional GC-O/MS. Here the odorous substances are separated on two coupled GC columns and then analyzed by a mass spectrometer. The odor quality is also evaluated at an odor detection port by highly trained sensory specialists.
The resulting instrumental-chemical information is then compared with the human-sensory evaluations to ensure that all off-odors are identified.
Detailed information about our analytical facilities