Table 1.

Performance of the sensor arrays of the PEN3 electronic nose.

No. in Array	Sensor Name	Reaction Compound	Typical Target
R1	W1C	Aromatic compounds	C6H5CH3
R2	W5S	Oxynitride	NO2
R3	W3C	Aromatic constituents, mainly ammonia	C6H6
R4	W6S	Hydrogen	H2
R5	W5C	Alkanes, aromatic compounds	C3H8
R6	W1S	Broad Methane	CH4
R7	W1W	Sulfides and organic sulfides	H2S
R8	W2S	Broad alcohols	C2H5OH
R9	W2W	Aromatics, organic sulfides	H2S
R10	W3S	Alkanes, especially methane	CH4