Table 3.

Precision and accuracy of the proposed MW-SPA at different REM concentration levels.

Taken concentration (μg/well)	Precision: relative standard deviation (%)		Accuracy: recovery (% ± SD)
	Intra−assay, n = 5	Inter−assay, n = 6
12.5	0.90	2.51	101.12 ± 1.02
25	0.67	2.18	99.58 ± 0.87
50	0.31	2.15	100.48 ± 1.23
100	0.06	0.31	98.82 ± 2.05
200	1.01	0.81	102.14 ± 1.57

^a Values are mean of three determinations.