Table 1. Linearity, Detection Limit (DL) S/N, and DL Mass Error for SIM Response Curves in Figure 4C and DL Data in Supplemental Figure S4 in the Supporting Information.

analyte	slope	adjusted R2	% RSD	detection limit (pg)	DL S/Na	DL mass error (ppm)b
phenol-d6	0.9244	0.9986	24.7	0.005	5.89 ± 0.55	2.02 ± 2.78
hexachloroethane	0.9262	0.9996	23.9	0.010	5.02 ± 2.20	1.73 ± 2.64
2,4-dichlorophenol	0.8719	0.9911	47.9	0.005	10.2 ± 0.83	3.09 ± 0.57
			18.2	0.025	24.0 ± 3.85	4.36 ± 0.74
hexachlorobutadiene	0.9448	0.9985	28.5	0.005	9.22 ± 0.90	2.68 ± 0.78
2,4-dinitrotoluene	1.0443	0.9950	32.6	0.010	3.98 ± 2.46	6.65 ± 0.91

^aAverage detection limit spectral signal-to-noise ratio (±standard deviation) at peak apex.

^bAverage detection limit mass error (±standard deviation) at peak apex.