“Quantity-effect” research strategy for comparison of antioxidant activity and quality of Rehmanniae Radix and Rehmannia Radix Praeparata by on-line HPLC-UV-ABTS assay

Table 2 Similarity of Dihuang and Shu Dihuang samples

Samples	Dihuang		Samples	Shu Dihuang
Samples	HPLC (9 common peaks)	ABTS (15 common peaks)	Samples	HPLC (8 common peaks)	ABTS (17 common peaks)
S01	0.994	0.982	P01	0.991	0.969
S02	0.954	0.957	P02	0.964	0.959
S03	0.903	0.898	P03	0.902	0.854
S04	0.952	0.958	P04	0.952	0.980
S05	0.988	0.978	P05	0.968	0.961
S06	0.975	0.969	P06	0.976	0.955
S07	0.994	0.974	P07	0.984	0.984
S08	0.989	0.974	P08	0.932	0.944
S09	0.992	0.988	P09	0.987	0.991
S10	0.991	0.934	P10	0.983	0.966
S11	0.941	0.946	P11	0.946	0.975
S12	0.840	0.716	P12	0.974	0.984
S13	0.994	0.993	P13	0.993	0.989

ISSN: 2662-7671