Sensor Array System Based on Electronic Nose to Detect Borax in Meatballs with Artificial Neural Network

Table 1

Gas sensors reality test result.

Sensor	Meatball sample without borax (0%)	Meatball sample with borax (0.05%)	Meatball sample with borax (0.10%)	Meatball sample with borax (0.15%)	Meatball sample with borax (0.20%)	Meatball sample with borax (0.25%)
	Standard deviation (%)
TGS 2600	6.30	7.23	7.31	3.85	8.02	3.69
TGS 2602	2.57	6.33	4.08	8.64	5.91	4.17
TGS 2611	14.61	15.06	9.86	7.97	17.96	9.52
TGS 2620	7.14	6.89	7.55	5.91	7.93	3.06
TGS 2612	3.30	10.09	3.91	2.28	3.55	2.15
TGS 826	3.23	10.91	7.19	10.50	7.25	5.78