Establishment of Quality Evaluation Method for Yinqiao Powder: A Herbal Formula against COVID-19 in China

Table 9

The calculation results of the ESM and QAMS method at 327 nm.

Batch	Forsythoside A	Neochlorogenic acid			Chlorogenic acid			Isochlorogenic acid A			Isochlorogenic acid C
	ESM	ESM	QAMS	RE %	ESM	QAMS	RE %	ESM	QAMS	RE %	ESM	QAMS	RE %
1	8.603	0.063	0.063	0.00	3.633	3.629	−0.11	2.502	2.502	0.00	0.436	0.433	−0.69
2	9.202	0.070	0.070	0.00	4.283	4.279	−0.09	2.349	2.349	0.00	0.540	0.536	−0.74
3	8.165	0.095	0.095	0.00	4.438	4.433	−0.11	2.871	2.872	0.03	0.669	0.665	−0.60
4	8.082	0.094	0.094	0.00	4.590	4.585	−0.11	2.760	2.761	0.04	0.685	0.680	−0.73
5	8.133	0.093	0.094	1.08	4.360	4.355	−0.11	2.828	2.828	0.00	0.691	0.687	−0.58
6	9.424	0.087	0.087	0.00	4.305	4.301	−0.09	2.792	2.792	0.00	0.616	0.612	−0.65
7	9.300	0.086	0.086	0.00	4.198	4.194	−0.10	2.753	2.753	0.00	0.604	0.599	−0.83
8	9.234	0.086	0.086	0.00	4.389	4.384	−0.11	2.589	2.590	0.04	0.642	0.638	−0.62
9	8.317	0.064	0.064	0.00	3.816	3.812	−0.10	2.342	2.343	0.04	0.485	0.482	−0.62
10	8.549	0.096	0.096	0.00	4.394	4.389	−0.11	2.826	2.826	0.00	0.707	0.703	−0.57