Table 1.

Validation results. Representative interday (n = 20) and intraday (n = 5) RSDs and % accuracies of calibrators and QC samples.

	Sample (ng/mL)	Average (ng/mL)	% Accuracy	RSD
Interday	0.500	0.471	94.2	9.80
	0.400	0.376	94.0	10.1
	0.250 (QH)	0.295	118	7.82
	0.200	0.203	102	3.91
	0.100	0.100	100	2.16
	0.080 (QL)	0.086	108	8.66
	0.050	0.053	106	15.0
Intraday	0.250 (QH)	0.283	113	12.7
	0.080 (QL)	0.080	100	10.5