Table 3. Quality control measurements.

Analyte			Lower limit of quantification	Low QC	Medium QC	High QC
			10 nM	30 nM	300 nM	1000 nM
Dihydro-5-AZA-CdR		Average±s.d.	11.3±4.33	31±2.83	299±1.78	998±2.28
	Intra-day	Accuracy (%)	96.7–103.4	99.9–101.6	99.8–100.2	99.76–100.1
		Precision (%)	0–8.7	2.1–2.2	1.1–1.8	0.30–0.37
	Inter-day	Accuracy (%)	102.5	101.8	99.28	100.36
		Precision (%)	7.1	1.75	1.26	0.85
Dihydro-5-AZA			10 nM	50 nM	300 nM	1000 nM
		Average±s.d.	9.3±4.2	51±3.73	299±2.49	997±3.21
	Intra-day	Accuracy (%)	93.3–102.4	102.7–105.1	99.45–99.98	100.1–100.8
		Precision (%)	6.11–9.25	4.8–9.3	0.53–1.1	0.74–5.82
	Inter-day	Accuracy (%)	95.42	99.69	99.42	100.23
		Precision (%)	6.91	8.7	3.59	0.49

Abbreviations: AZA, 5-azacytidine; QC, quality control.