Table 4.

Recovery assay statistical data (n = 3).

Standards	Concentration in Sample (mg/mL)	Amount Spiked (mg/mL)	Mean Amount Found in Mixture (mg/mL)	Mean Recovery (% ± SD *)
Caffeic acid	0.003	0.0015 0.003 0.006	0.0025 0.003 0.0045	101.357 ± 1.498 100.613 ± 0.787 100.351 ± 0.321
Chlorogenic acid	0.3	0.15 0.3 0.6	0.225 0.3 0.45	96.307 ± 3.589 101.337 ± 1.990 100.658 ± 1.704
Coumaric acid	0.0008	0.0004 0.0008 0.0016	0.0006 0.0008 0.0012	99.127 ± 2.538 102.453 ± 2.826 104.788 ± 2.317
Ferulic acid	0.0005	0.00025 0.0005 0.001	0.000375 0.0005 0.00075	103.252 ± 3.524 99.314 ± 2.409 101.117 ± 1.512
Rutin	0.3	0.15 0.3 0.6	0.225 0.3 0.45	98.659 ± 3.617 101.840 ± 2.378 100.243 ± 0.225

* SD: Standard deviation.