Table 2. Determination of quercetin in fruit juice samples and the recovery data (N=8).

Sample	c(spiked) mg/L	c(found) mg/L	Recovery %
Cranberry	0.00	0.59±0.11	n.d.
	0.34	0.92±0.08	94.72
Blackcurrant	0.00	0.16±0.05	n.d.
	0.34	0.48±0.10	93.24

n.d.=not determined