Table 3.
Precision of ellagic acid in black raspberry extract for validation

	precision (%)
	Mean±SD (mg/g)	RSD (%)1)
	Inter-day3)	9.02±0.032)	0.28
9.03±0.14		1.55
9.07±0.12		1.32
9.09±0.16		1.76
8.57±0.08		0.93
8.69±0.17		1.96
8.48±0.14		1.65
8.60±0.16		1.86
8.90±0.12		1.35
Intra-day3)	8.88±0.10	1.13
	8.75±0.16	1.18
	8.73±0.07	0.80
	8.45±0.21	2.49
	8.08±0.18	2.23
	8.40±0.16	1.91
	8.69±0.06	0.69
	8.80±0.09	1.02
	8.92±0.12	1.35

Relative standard deviation
Each value represents the mean±SD (n=3).
Inter-day: one time analysis of ellagic acid per day for 3 days, Intra-day: three times per day