Research Article

Gas Sensors Modified with Zeolite Y for Assessing Wine Aroma Compounds

Table 3

Sensitivity of sensors based on oxides prepared.

Compounds0.1% (Pt)M1 0.1%M2 0.1%M3 0.1%0.1% (Pd)0.2% (Pt)M1 0.2%M2 0.2%M3 0.3%0.2% (Pd)

Ethanol 12% (et)20.751.50.30.250.20.52.50.550.2
Methanol 3% (met)0.50.40.90.350.40.10.251.40.250.1
Mixture (ethanol 12%/methanol 3%) (et12met3)0.751.82.81.20.50.350.83.20.80.35
1 Phenyl etanol (f)0.20.180.40.250.0500.21.20.20
Propionic acid ()0.70.550.950.550.10.050.21.60.20
Acetic acid (a)0.60.250.50.250.10.050.151.10.150