Table 5.

Method Validation (Limits of Detection, Accuracy, and Precision) for Quantitation of the Major Bioactive Constituents of Maqui Berry (A. chilensis) Fruits.

constituent	LOD	LOQ	precision (RSD, n = 6)		repeatability (n = 6)	recovery (n = 3)
	(ng)	(ng)	intra-day	inter-day	RSD	mean	RSD
10	2.2	7.5	0.98%	2.17%	2.28%	92.06%	2.84%
14	2.0	6.7	0.88%	2.38%	1.82%	93.08%	2.99%
12	2.1	7.1	1.11%	2.21%	1.62%	90.32%	1.96%
11	2.4	7.8	0.86%	2.03%	1.42%	95.20%	2.54%
7	3.5	9.9	0.69%	1.98%	1.95%	91.49%	2.19%
6	2.9	9.1	0.77%	1.66%	1.11%	92.29%	1.88%