Fig. 6

90% response/recovery times of SAW sensor at operating temperature (a) – 20 °C, (b) – 10 °C, (c) 0 °C, (d) 10 °C, (e) 20 °C, (f) 30 °C, (g) 40 °C, and (h) 50 °C for 5 mg/m3 of 2-CEES.

90% response/recovery times of SAW sensor at operating temperature (a) – 20 °C, (b) – 10 °C, (c) 0 °C, (d) 10 °C, (e) 20 °C, (f) 30 °C, (g) 40 °C, and (h) 50 °C for 5 mg/m3 of 2-CEES.