Table 1.
Type of Sensor (Figaro = Validation; P3HT NFs = Measurement) |
Type of Carrier Gas | Carrier Gas Flow Rate | Analyte | Tested Amounts of Analyte |
---|---|---|---|---|
Figaro | Dry nitrogen | 10 L/min | Laboratory air (approx. water content: 0.61 ppm) | 1, 5, 10 mL * |
P3HT NFs | Dry nitrogen | 2 L/min | Saturated acetone vapors | 3.5, 10.5, 17.6 ppm |
P3HT NFs | Dry air | 2 L/min | Saturated acetone vapors | 3.5, 10.5, 17.6, 35 ppm |
P3HT NFs | Dry nitrogen | 2 L/min | Saturated water vapors | 0.61, 1.2 ppm |
* for the validation measurement the amount of injected analyte is given in mL, rather than in ppm, because of the very long times of desorption of the analyte from the sensor’s surface, which made any attempt to calculate the actual concentration within the chamber not significant.