Table 3.

Analytical results of accuracy test

Components	Spiked amount (μg/ml)	Measured amount (μg/ml)	RSD (%)	Recoverya (%)
Paeoniflorin	4.00	4.00 ± 0.03	0.48	100.01
	1.50	1.51 ± 0.03	0.68	100.49
	1.40	1.37 ± 0.01	0.34	97.78
6-Gingerol	4.50	4.51 ± 1.80	1.80	100.36
	2.25	2.38 ± 0.01	1.48	105.88
	2.00	2.07 ± 0.01	2.03	103.73
Decursin	7.00	6.91 ± 0.004	0.10	98.68
	3.00	3.05 ± 0.01	2.88	95.98
	2.00	1.98 ± 0.01	0.37	99.09
Glycyrrhizin	1.50	1.58 ± 0.002	0.37	105.64
	6.50	6.30 ± 0.01	0.89	96.98
	11.00	10.62± 0.10	4.82	96.58
Cinnamic acid	2.40	2.43 ± 0.01	0.31	101.09
	1.20	1.05 ± 0.01	1.00	95.89
	1.00	1.01 ± 0.003	0.33	101.26

^aRecovery (%) = (amount found − original amount)/amount spiked ×100 %