GC-O refers to Gas Chromatography coupled with Olfactometry. A human (panelist) is one of the detectors and works in parallel with a GC detector. GC-O combines human perception and scientific response to help professionals link chemical compound to the emotional sense elicited by the said compounds. It allows one to characterize the flavors and fragrances and identify specifc chemical compounds within them. GC-O exhibits powerful capabilities that can be applied to flavors and perfumes, as well as to any odoriferous products (e.g. pollutants) The Sniffer 9100 System is designed to be a dedicated Sniffng-port as a stand alone unit to be connected to any GC available on the market. It is also available as a complete system.