Table 4.

Comparison of analytical parameters for different biosensors: Ty/bare SPE, Ty/Biochar/SPE, and Ty/Graphene/SPE biosensors.

	Linear Range (mM)	LOD (mM)	${\mathit{K}}_{\mathit{M}}^{\mathit{a}\mathit{p}\mathit{p}}$ (mM)
Ty/biochar/SPE	0.02–0.50	2.4 × 10−4	0.15
Ty/graphene/SPE	0.02–0.25	1.0 × 10−4	0.09
Ty/bare SPE	0.02–2.0	9.2 × 10−4	0.25