Fragrance

zNose® is designed in such a manner that it first samples ambient air (aroma) and organic vapors collected (pre-concentrated) on the trap. After the sampling process, the trap is switched into the helium section where the collected organic compounds are injected into the helium gas. The organic compounds pass through a capillary column with different velocities and thus individual chemicals exit the column at characteristic times. As they exit the column they are detected and quantified by a solid state detector. An internal microprocessor then transfers sensor data to a user interface where aroma chemistry is displayed.

Several types of fleuressence bases such as Aldehyde, Citrus, Narcotic, Phenolic, etc. are used while making perfumes. All these bases have a certain concentration level that has to be well maintained to create the right kind of perfume. But knowing and maintaining these concentration levels is not an easy task. zNose® tests any vaporized essence of perfume within real time and with speed, precision, and accuracy using GC chromatography and SAW sensor techniques. Using these techniques it compares the chemical signature of perfumes created by trained perfumery technicians. Using indexing of retention times for target compounds it identifies these concentration levels determining a good chemical signature from a bad one.