Table 7.

The calibration curves and limits of detection for 2-MIB and GSM.

Compounds	Calibration curves	Correlation coefficients (R)	LOD (ng L−1)	LOQ (ng L−1)
2-MIB	$\widehat{\mathbf{y}}=0.1358x+0.0334$	0.9999	0.13	0.4
GSM	$\widehat{\mathbf{y}}=1.6583x+0.3079$	0.9999	0.04	0.2