Table 3.

Precision and accuracy by recovery of the chromatographic method

Concentration level (%)	RSD%
	Intra-assay (1 day) (n=6)	Inter-assay (3 days) (n=18)
50%	0.85	0.10
100%	0.68	0.54
150%	0.92	0.88
Average	0.82	0.51