Table 1.

Parameters of fitting curves related to the experimental data of LPG-A, LPG-B and LPG-C.

Sensor name	R2	$\Delta {\mathit{\lambda }}_{\mathit{MAX}}$ (nm)	x0 (μg/mL)	p
LPG-A	0.9938	0.5664 ± 0.0620	1.07 ± 0.6644	0.4238 ± 0.0606
LPG-B	0.9957	1.1319 ± 0.1302	1.6125 ± 0.9603	0.3899 ± 0.0573
LPG-C	0.9987	1.1969 ± 0.1542	1.2488 ± 0.3217	0.3931 ± 0.0348