Table 4.

Results of the comparison of 10 batch samples.

No.	Emodin	Physcion (μg·g−1)		Emodin-8-O-β-D-glucopyranoside (μg·g−1)		Physcion-8-O-β-D-glucopyranoside (μg·g−1)		F value
		QAMS	External standard method	QAMS	External standard method	QAMS	External standard method	QAMS	External standard method
Polygoni multiflori Radix Preaparata 01	82.348	25.770	24.189	53.922	54.958	10.929	11.074	0.60	0.62
Polygoni multiflori Radix Preaparata 02	205.005	74.247	74.110	42.633	42.941	7.903	7.948	0.18	0.18
Polygoni multiflori Radix Preaparata 03	29.817	18.137	18.104	6.834	6.883	3.795	3.816	0.22	0.23
Polygoni multiflori Radix Preaparata 04	1.714	0.562	0.558	0.386	0.301	0.088	0.079	0.17	0.17
Polygoni multiflori Radix Preaparata 05	3.834	1.210	1.303	2.309	1.930	0.684	0.669	0.59	0.51
Polygoni multiflori Radix Preaparata 06 (disqualified)	0.246	0.151	0.150	0.566	0.452	0.366	0.363	2.35	2.06
Polygonum multiflorum Radix 07	12.148	5.687	5.677	41.728	42.029	35.911	36.112	4.35	4.38
Polygonum multiflorum Radix 08	89.144	36.892	36.824	103.343	104.090	48.844	49.119	1.21	1.22
Polygonum multiflorum Radix 09	20.369	11.598	11.577	40.942	41.238	32.344	32.526	2.29	2.32
Polygonum multiflorum Radix 10	0.174	0.097	0.096	0.604	0.482	0.370	0.333	3.59	3.02