ABSTRACT
With respect to the chemometric tools that may be used with (Bio)ET systems, although this is one of their chief parts, a detailed description is out of the scope of this chapter and they will only be mentioned as used; a proper exposition can be consulted in recent reviews, well for ET systems [13], or for electronic nose systems [14], that is, the equivalent analytical systems but using gas sensors and applied to gas media, given data processing details are mostly equivalent between both.
