Table 2.

Intrabatch (n = 5) and interbatch (n = 15) accuracy and precision of trans-resveratrol, R3S, and R3G in mice blood at four QC levels.

Analytes	Nominal concentration (ng/mL)	Intrabatch (n = 5)			Interbatch (n = 15)
		Measured concentration (ng/mL)	Precision (%)	Accuracy (%)	Measured concentration (ng/mL)	Precision (%)	Accuracy (%)
Trans-resveratrol	2.24	2.30 ± 0.25	10.91	103.23	2.31 ± 0.20	8.81	103.71
	5.59	5.93 ± 0.56	9.45	106	5.52 ± 0.50	9.11	98.65
	22.35	25.24 ± 0.47	1.87	112.6	23.69 ± 2.13	9.00	105.69
	111.75	108 ± 4.52	4.18	96.28	107.34 ± 9.02	8.40	95.79
R3G	1.00	1.07 ± 0.15	14.00	106.9	1.03 ± 0.13	12.22	103.44
	5.00	5.25 ± 0.30	6.00	104.9	5.33 ± 0.32	6.07	106.46
	20.00	18.1 ± 0.91	5.00	90.48	18.31 ± 1.25	6.86	91.57
	100.00	90.7 ± 4.67	5.00	90.7	96.21 ± 7.74	8.04	96.21
R3S	1.00	1.02 ± 0.08	8.11	101.50	0.96 ± 0.09	9.38	96.05
	5.00	5.19 ± 0.22	4.29	103.87	5.34 ± 0.37	6.97	106.83
	20.00	18.04 ± 0.61	3.00	90.30	18.67 ± 1.65	8.84	93.33
	100.00	103.07 ± 9.13	8.86	103.07	100.73 ± 10.96	10.88	100.73

Data of measured concentration represented as mean ± SD. R3G, trans-resveratrol-3-o-β-glucuronide; R3S, trans-resveratrol-3-sulfate salt.