A Mobile-Based High Sensitivity On-Field Organophosphorus Compounds Detecting System for IoT-Based Food Safety Tracking

Table 1

Character of p-nitrophenol detection with different photodetection sensor.

Identifier	Linear relationship	Analytical conc.; (10^−6mol/L)
Chip 1	0.9924	0.4841
Chip 2	0.9797	0.5113
Chip 3	0.9919	0.4869
Chip 4	0.9762	0.5018