Table 2.

The linearity, LOD, and LOQ obtained for GHB, GBL, and 1,4-BD.

Compound	Linear equation	R 2	LOD (μg/mL)	LOQ (μg/mL)
GHB	y = 5052.1x + 72524	0.9991	0.2	0.5
GBL	y = 2192x + 117649	0.9992	1	2.5
1,4-BD	y = 12856x + 22234	0.9995	0.2	0.5