Table 5.

Precision and accuracy of analytical results (n = 5).

Compound	Fortified conc. (µg/mL)	Intra-day			Inter-day
		Observed conc. (µg/mL)	Precision (%)	Accuracy (%)	Observed conc. (µg/mL)	Precision (%)	Accuracy (%)
	2.00	2.01	1.13	100.44	2.02	1.10	100.82
5-HMF (1)	5.00	5.25	0.38	104.93	5.27	0.98	105.35
	10.00	9.88	0.11	98.75	9.86	0.23	98.63
	2.00	2.04	2.77	102.11	2.00	2.03	99.94
Albiflorin (2)	5.00	5.15	1.78	102.96	5.17	2.22	103.32
	10.00	9.92	0.46	99.18	9.92	0.51	99.17
	10.00	10.10	1.04	100.97	10.14	1.22	101.42
Paeoniflorin (3)	25.00	25.20	0.74	100.79	25.17	1.77	100.66
	50.00	49.88	0.15	99.76	49.89	0.44	99.78
	2.00	1.97	1.54	98.75	2.01	2.04	100.56
Liquiritin (4)	5.00	5.23	0.93	104.69	5.18	0.82	103.64
	10.00	9.89	0.20	98.88	9.91	0.14	99.07
	4.00	4.19	2.02	104.81	4.06	1.87	101.58
Nodakenin (5)	10.00	10.41	2.85	104.13	9.75	2.83	97.46
	20.00	19.90	0.81	99.49	20.11	0.64	100.57
	6.00	6.40	1.07	106.66	6.45	0.71	107.43
Hesperidin (6)	15.00	14.60	0.28	97.32	14.52	0.30	96.77
	30.00	30.12	0.06	100.40	30.15	0.06	100.51
	4.00	4.18	1.38	104.53	4.17	1.04	104.37
Glycyrrhizin (7)	10.00	10.07	1.32	100.73	10.05	0.40	100.46
	20.00	19.93	0.28	99.64	19.94	0.07	99.71