Research Article
Gas Sensors Modified with Zeolite Y for Assessing Wine Aroma Compounds
Table 3
Sensitivity of sensors based on oxides prepared.
| Compounds | 0.1% (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) | 2 | 0.75 | 1.5 | 0.3 | 0.25 | 0.2 | 0.5 | 2.5 | 0.55 | 0.2 | Methanol 3% (met) | 0.5 | 0.4 | 0.9 | 0.35 | 0.4 | 0.1 | 0.25 | 1.4 | 0.25 | 0.1 | Mixture (ethanol 12%/methanol 3%) (et12met3) | 0.75 | 1.8 | 2.8 | 1.2 | 0.5 | 0.35 | 0.8 | 3.2 | 0.8 | 0.35 | 1 Phenyl etanol (f) | 0.2 | 0.18 | 0.4 | 0.25 | 0.05 | 0 | 0.2 | 1.2 | 0.2 | 0 | Propionic acid () | 0.7 | 0.55 | 0.95 | 0.55 | 0.1 | 0.05 | 0.2 | 1.6 | 0.2 | 0 | Acetic acid (a) | 0.6 | 0.25 | 0.5 | 0.25 | 0.1 | 0.05 | 0.15 | 1.1 | 0.15 | 0 |
|
|