Sensor Arrays and Electronic Tongue Systems

Table 1

Examples of different families of sensors used to form the sensor array in an electronic tongue.

Sensor family	Research group	Example	Reference
Electrochemical, potentiometric	Legin (Russia)	Determination of heavy metals with an array of chalcogenide membrane sensors	[30]
Electrochemical, ISFETs	Bratov (Spain)	Determination of several ions for water characterization	[31]
Electrochemical, voltammetric	Winquist (Sweden)	Characterization of waters with an array of noble metals	[32]
Electrical, resistive	Mattoso (Brazil)	Conducting polymer sensors	[33]
Optical	Mc.Devitt (USA)	Microspheres with immobilized dyes	[34]
Gravimetric	Gardner (UK)	Surface acoustic wave (SAW) sensors	[35]