Table 2.

Main sensors’ characteristics of I-Nose electronic nose instruments.

	I-Nose Eletronic Nose
Sensors	Sensors characteristics
Sn1	More sensitive to aromatic compounds
Sn2	More sensitive to nitrogen oxides
Sn3	More sensitive to sulfides
Sn4	More sensitive to organic acids, terpenoids
Sn5	More sensitive to biosynthetic compounds
Sn6	More sensitive to thionine
Sn7	More sensitive to aliphatic hydrocarbons
Sn8	More sensitive to amines
Sn9	More sensitive to dihydrostyrene
Sn10	More sensitive to hydrocarbons
Sn11	More sensitive to volatile organic compounds
Sn12	More sensitive to sulfides
Sn13	More sensitive to ethylene
Sn14	More sensitive to volatile gases generated during cooking