TABLE 7.

The results of stability.

Component	Concentration (ng/ml)	Room temperature 24 h(ng/mL)	RSD (%)	4°C24h (ng/ml)	RSD (%)	Freeze-thaw (ng/ml)	RSD (%)	Long stability (ng/ml)	RSD (%)
TSG	14,825.00	14,588.47	1.9	14,393	9.7	13,676.34	5.0	14,032.10	4.2
	741.25	707.81	5.1	735.65	1.3	799.25	3.2	735.67	9.0
	14.83	12.23	4.0	18.27	6.4	15.70	8.4	16.57	10.1
Emodin	38,375.00	18,338.88	7.9	19,254.57	5.0	16,020.76	7.2	19,872.84	11.6
	767.50	783.9	6.7	773.62	2.4	703.82	11.0	723.65	9.1
	15.28	15.38	3.8	12.28	7.0	17.00	9.1	12.72	5.3
Aloe-emodin	2,900.00	2,867.01	6.1	3,021.55	2.6	3,101.50	1.7	2,756.34	7.8
	362.50	375.62	10.1	325.67	9.9	408.33	1.8	357.26	8.5
	12.79	11.44	12.6	10.24	8.0	9.68	5.6	13.55	2.7
Physcion	6,550.00	6,258.35	10.0	6,618.34	8.4	6,534.22	6.3	6,896.46	11.3
	409.38	431.57	4.2	429.55	13.7	395.96	7.5	401.67	4.3
	12.79	12.42	3.4	15.65	1.9	9.78	7.7	13.77	10.2
E-glu	6,350.00	6,025.12	12.5	2054.33	11.8	6,202.46	7.5	6,435.66	13.9
	396.88	366.48	8.7	366.16	2.6	409.91	10.8	394.13	12.3
	12.40	13.19	6.1	15.22	9.3	11.32	11.4	11.58	11.9
P-glu	1,233.30	1,129.33	7.8	1,238.43	11.0	1,309.48	14.9	1,286.72	4.4
	205.50	221.06	9.2	208.37	7.8	197.10	13.8	200.84	5.3
	12.84	15.64	1.7	12.92	2.2	12.02	11.7	13.58	12.3
Gallic acid	1,280.00	1,342.38	11.9	1,272.02	13.8	1,188.50	12.9	1,306.35	7.9
	213.32	278.94	4.7	277.25	12.2	199.66	7.6	201.39	8.3
	13.32	13.56	11.5	12.82	8.9	11.38	4.9	14.12	6.6
Catechin	4,750.00	4,650.67	4.6	4,654.36	11.6	4,999.10	11.6	4,726.31	6.7
	296.87	301.23	6.4	277.48	9.3	302.41	7.0	286.34	10.6
	18.56	18.06	9.7	17.90	4.2	18.6	2.9	20.9	5.2
Resveratrol	8,600.00	8,738.41	6.8	8,654.18	1.4	8,399.20	11.5	8,513.48	2.4
	537.50	521.81	4.4	542.29	1.9	501.81	6.6	514.25	1.5
	16.78	16.28	8.8	15.64	8.8	18.84	7.3	15.34	6.7