Table 4.

Summary of sensing performance for the different sensing systems.

No.	Sensing System	Parameters					Ref.
		Dynamic Range Width	Sensitivity (Umami)	Linearity	Response Time	Reproducibility (RSD)
1	Proposed Electronic Tongue	1 µM–1 M	16.19 mV/decade	0.985	6 s	0.029	This work
2	Potentiometry	0.1 µM–100 mM	-	poor	> 6.45 min	-	[92]
3	C-CLBT	1 fM–1 mM	12.2 µA/decade	good	-	-	[27]
4	Electronic Tongue (SA402)	1 µM–1 M	13.0 mV/decade	-	20 s	-	[93,94]
5	Optical Fiber	0.1 µM–10 mM	-	-	10 s	poor	[29]