ABSTRACT
Gas chromatography-olfactometry (GC-O) has now become a widely used method that associates the separation capability of gas chromatography to the specific sensitivity of the human nose as a detector. It was first mentioned in the literature in 1964 (1), after separation of volatiles in packed columns. However, its use in flavor and fragrance laboratories might well be older (2). At that time it was only of limited qualitative assistance to flavorists and perfumers in the evaluation of odor constituents. It is still used in this informal manner in many laboratories.
