Table 4. Precision of ellagic acid in Rubus occidentalis extract for validation

Precision		Mean±SD (mg/g)	RSD (%)2)
Repeatability	User 1	12.95±0.361)	2.74
	User 2	13.14±0.49	3.70
	User 2	13.48±0.19	1.38
Intermediate precision	User 1	13.16±0.16	1.19
	User 1	13.32±0.34	2.51
	User 2	13.41±0.23	1.73

All values are expressed as mean±SD of triplicate determinations.
Relative standard deviation.