Table 2.

Accuracy results for spiked aqueous blank.

Analyte	Accuracy Levels	Targets (μg/L)	Average (μg/L)	% RSD	% Accuracy
Al	Low	7.5	7.38	2.9	98
	Mid	25	25.3	2.6	101
	High	40	40.4	3.3	101
Cr	Low	0.375	0.374	3.7	99
	Mid	1.25	1.24	1.5	99
	High	2	1.98	1.1	99
Fe	Low	1.88	1.98	12.1	105
	Mid	6.25	6.16	1.5	99
	High	10	10	4	100
Co	Low	0.375	0.367	1.3	98
	Mid	1.25	1.24	1	99
	High	2	1.97	1.3	99
Ni	Low	0.375	0.379	4.7	91
	Mid	1.25	1.23	1.6	96
	High	2	1.98	2	97
Cu	Low	0.75	0.727	1.8	96
	Mid	2.5	2.43	1.7	97
	High	4	3.86	1.1	96
Cd	Low	0.075	0.073	1.5	97
	Mid	0.25	0.239	2.7	95
	High	0.4	0.385	1.5	96
Sn	Low	0.15	0.145	1.5	96
	Mid	0.5	0.482	1.3	96
	High	0.8	0.772	2	96
Ba	Low	0.375	0.345	5.3	92
	Mid	1.25	1.19	0.9	95
	High	2	1.93	1.2	96
Pb	Low	0.375	0.361	1.4	96
	Mid	1.25	1.21	1.7	96
	High	2	1.93	1.7	97