Table 1.

Comparison of the linear ranges and detection limits of different methods.

Methods	Linear Range (mg/L)	LOD (mg/L)	R 2	Matrices	Reference
HPLC-DAD	0.2–5	0.03	0.999	Soya milk	[1]
HPLC-UV	0.05–5	0.011	0.999	Soil	[6]
Immunoassay	-	0.005	0.990	Environmental water	[11]
DTC-PTBCA-AuNPs based UV-vis detection	0.381–19.1	0.0724	0.996	Environmental water	[19]
Anti-aggregation-AuNPs based UV-vis detection	0.1–100	0.05	0.957	Irrigation water	This work