Table 2. Mean values of the sensitivity (10−2 % × ppm−1) to the different vapors tested for the MWCNT/Au and MWCNT/Au/MHDA sensors.
Ethanol | Methanol | Acetone | Toluene | Benzene | |
---|---|---|---|---|---|
MWCNT/Au | 45.6 | 37.3 | 2.8 | 11 | 27.8 |
MWCNT/Au/MHDA | 525.3 | 108.9 | 32.4 | N/D | N/D |
N/D: Not detected