Multicomponent Analysis of Liuwei Dihuang Pills by a Single Marker Quantification Method and Chemometric Discrimination of Fingerprints

Table 2

Results of recovery test.

Component	Content (mg)	Added (mg)	Determined (mg)	Recovery (%)	Average recovery (%) (n = 9)	RSD (%) (n = 9)
Gallic acid	2.376	1.847	4.267	102.4	102.2	0.51
	2.371	1.847	4.246	101.5
	2.370	1.847	4.245	101.5
	2.371	2.309	4.731	102.3
	2.369	2.309	4.721	101.9
	2.376	2.309	4.738	102.3
	2.381	2.771	5.238	103.1
	2.365	2.771	5.209	102.7
	2.372	2.771	5.207	102.3
5-HMF	1.752	1.425	3.228	103.6	100.9	1.3
	1.748	1.425	3.203	102.1
	1.747	1.425	3.192	101.4
	1.748	1.781	3.543	100.8
	1.747	1.781	3.525	99.9
	1.752	1.781	3.522	99.4
	1.756	2.137	3.895	100.1
	1.744	2.137	3.890	100.4
	1.749	2.137	3.894	100.4
Morroniside	2.185	1.801	4.041	103.1	101.6	0.91
	2.180	1.801	4.017	102.0
	2.179	1.801	4.016	102.0
	2.180	2.251	4.475	101.9
	2.178	2.251	4.443	100.6
	2.185	2.251	4.433	99.8
	2.190	2.701	4.927	101.3
	2.175	2.701	4.929	102.0
	2.182	2.701	4.926	101.6
Sweroside	0.240	0.166	0.403	97.9	99.1	1.2
	0.239	0.166	0.403	98.3
	0.239	0.166	0.404	98.8
	0.239	0.208	0.445	98.9
	0.239	0.208	0.443	98.2
	0.240	0.208	0.444	98.3
	0.240	0.250	0.487	98.9
	0.239	0.250	0.491	101.2
	0.239	0.250	0.491	100.9
Loganin	1.784	1.562	3.351	100.3	101.9	1.5
	1.780	1.562	3.347	100.4
	1.779	1.562	3.344	100.2
	1.780	1.952	3.753	101.1
	1.778	1.952	3.772	102.1
	1.784	1.952	3.780	102.2
	1.788	2.343	4.210	103.4
	1.776	2.343	4.211	104.0
	1.781	2.343	4.207	103.6
Paeoniflorin	0.736	0.549	1.280	99.1	100.8	1.7
	0.734	0.549	1.274	98.3
	0.734	0.549	1.283	100.0
	0.734	0.686	1.423	100.4
	0.734	0.686	1.424	100.6
	0.736	0.686	1.423	100.1
	0.738	0.824	1.583	102.7
	0.733	0.824	1.584	103.4
	0.735	0.824	1.577	102.2
Cornuside	0.197	0.121	0.319	100.6	100.0	0.67
	0.197	0.121	0.318	100.0
	0.197	0.121	0.317	100.0
	0.197	0.151	0.349	100.8
	0.196	0.151	0.348	100.1
	0.197	0.151	0.346	98.4
	0.197	0.181	0.379	100.0
	0.196	0.181	0.378	100.4
	0.197	0.181	0.378	99.9
Paeonol	2.952	2.154	5.141	101.6	102.1	0.82
	2.946	2.154	5.155	102.6
	2.945	2.154	5.175	103.5
	2.946	2.692	5.703	102.4
	2.944	2.692	5.718	103.1
	2.953	2.692	5.678	101.2
	2.959	3.230	6.228	101.2
	2.939	3.230	6.231	101.9
	2.948	3.230	6.226	101.5

5-HMF: 5-hydroxymethylfurfural.