Table 2.

Intra- and inter-day precision and accuracy.

Thiotepa	Intra-day				Inter-day
Nominal, ng/mL	2.50	3.00	80.0	1600	2.50	3.00	80.0	1600
%CV	6.9–8.1	6.3–7.8	2.5–3.5	2.1–5.6	7.6	7.0	4.7	4.0
%dev	−2.7–3.3	1.9–8.4	1.9–11	−3.0–1.0	0.98	5.7	7.2	−0.7
n	6	6	6	6	18	18	18	18
Tepa	Intra-day				Inter-day
Nominal, ng/mL	2.50	3.00	80.0	1600	2.50	3.00	80.0	1600
%RSD	4.7–8.9	4.8–8.6	2.3–3.1	1.0–3.4	7.7	7.1	2.5	3.5
%dev	−4.9–2.9	−1.8–4.7	11–12	2.3–7.9	−1.7	1.2	12	4.3
n	6	6	6	6	18	18	18	18
CP	Intra-day				Inter-day
Nominal, ng/mL	20	60	800	8000	20	60	800	8000
%RSD	5.2–9.6	3.6–5.8	3.6–4.1	1.6–4.5	9.5	5.2	4.3	5.0
%dev	−17– −3.3	2.6–10	6.8–12	−0.9–7.5	−10.0	6.1	8.6	2.3
n	6	6 (5)	6	6	18	17	18	18
4OHCP	Intra-day				Inter-day
Nominal, ng/mL	20	60	800	4000	20	60	800	4000
%RSD	2.6–9.2	3.8–7.9	3.3–4.7	3.5–5.6	6.0	7.0	4.0	10
%dev	−1.7–2.7	1.7–11	−1.6–2.0	−13–9.1	0.6	5.3	0.8	−0.7
n	6	6 (5)	6	6	18	17	18	18