Application of Temperature Modulation-SDP on MOS Gas Sensors: Capturing Soil Gaseous Profile for Discrimination of Soil under Different Nutrient Addition

Table 1

MOS gas sensors used and typical gas target claimed.

Number	Sensor	Gas target	Working range
1	TGS2444	Ammonia	1–100 ppm [20]
2	TGS2602	Air contaminant	1–30 ppm of EtOH [44]
3	TGS825	Hydrogen sulfide	5–100 ppm [36]
4	FIS12A	Methane	300–7,000 ppm [45]
5	FIS30SB	Alcohol	1–100 ppm [46]
6	FISAQ1	VOC (air quality)	10–10,000 ppm [47]