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. 2019 Mar 14;19(6):1296. doi: 10.3390/s19061296

Table 1.

Summary of the different conditions used for the described experiments.

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.