Table 5.

Accuracy test determined by the standard addition method at three added concentrations HDG contents (in flaxseed cake extract obtained using optimal extraction parameters) are the mean ± RSD of 3 independent replicates.

Spike concentration (µg/mL)	In sample (before addition) (µg/mL)	Expected (calculated) (µg/mL)	Actual (measured)(µg/mL)	Recovery (%)	RSD (%)
5	19.60 ± 0.24	24.60	24.57 ± 0.34	99.88	1.38
10	19.60 ± 0.24	29.60	29.48 ± 0.37	99.60	1.25
15	19.60 ± 0.24	34.60	34.50 ± 0.13	99.71	0.37