Chemical vapor sensing arrays have grown in popularity over the past two
decades, finding applications for tasks such as process control,
environmental monitoring, and medical diagnosis. This is the first
in-depth analysis of the process of choosing materials and components
for these "electronic noses", with special emphasis on computational
methods. For a view of component selection with an experimental
perspective, readers may refer to the complementary volume of
Integrated Microanalytical Systems entitled "Combinatorial
Methodologies for Sensor Materials."