Electronic nose simulation of olfactory response containing 500 orthogonal sensors in 10 seconds

An electronic nose using fast gas chromatography with an uncoated 500 MHz SAW resonator can produce an olfaction response consistent with an array of 500 or more orthogonal sensors in 10 seconds. This new eNose is providing law enforcement officers, environmental scientists, quality control specialists, and olfaction researchers with a new investigative tool. The GC/SAW is an optimal electronic nose which provides a recognizable high resolution visual image of specific vapor mixtures (fragrances) containing many different chemical species. The GC/SAW simultaneously is able to quantify the concentration of the individual chemical compounds present in odors universally. It is this universality which leads to such a wide diversity of applications.