Table 1.

Precision and Accuracy Results for TFVdp, FTCtp, and 3TCtp in DBS Quality Control Samples

Analyte	Nominal conc. (fmol/sample)	Run 1 Accuracy (%Bias)	Run 1 Precision (%CV)	Run 2 Accuracy (%Bias)	Run 2 Precision (%CV)	Run 3 Accuracy (%Bias)	Run 3 Precision (%CV)	Inter-assay Accuracy (%Bias)	Inter-assay Precision (%CV)
TFVdp	100	−5.2	5.2	2.1	4.1	3.1	8.6	0.0	7.0
	300	−4.0	5.5	0.3	2.6	−0.3	4.4	−1.3	4.5
	2000	−1.5	2.5	−0.5	3.2	0.4	2.4	−0.5	2.7
	20000	−1.6	2.3	−1.2	1.5	0.3	1.6	−0.8	1.9
FTCtp	100	−3.0	14.0	−0.2	4.4	2.9	6.7	−0.1	9.0
	300	0.2	6.3	−1.8	3.7	−0.9	5.0	−0.9	4.9
	2000	1.8	1.6	−1.0	1.5	−0.3	3.6	0.1	2.6
	20000	−0.8	2.1	−3.4	1.0	0.2	2.4	−1.3	2.4
3TCtp	100	0.7	9.4	−9.6	8.0	1.8	8.4	−2.4	9.8
	300	−2.1	5.8	−2.8	4.5	−3.9	5.2	−3.0	5.0
	2000	0.1	1.5	−1.5	1.6	0.8	2.6	−0.2	2.1
	20000	−0.5	1.2	−3.1	0.9	0.9	2.6	−0.9	2.4