Electronic nose definition

The electronic nose was used to have the first selection of sample to submit for further analyses, such as the volatile compounds and the volatile fatty acids for the study and the definition of the fermentations in progress, the electrophoresis determination of casein, chemical analyses and sensory analysis. 

Gardner, J.W. and Bartlett, P.N., Performance definition and standardization of electronic noses. Sens. Actuators B, 33, 60, 1996. 

The definition of the term electronic nose is itself a topic for debate. The term first began to be used by scientists in the mid to late eighties but the following definition was not published until 1994 [3] ... 

Figure 13. Multivariate data processing techniques employed by electronic noses. See reference [2] for definition of acronyms.

Attempts to measure odors with electronic instruments were made in the early 1960s [4, 5], but the modern era of artificial olfaction began in 1982 with the work of Persaud and Dodd [6], who used a small array of gas-sensitive metal-oxide devices to classify odors. The expression electronic nose however appeared for the first time in 1987 [7] while its current definition was given by Gardner in 1988 [8]. Commercial instruments became available in early 1990s with original machines developed by Alpha Mos (France) and Aromascan (UK). 

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