Quantitative Analysis of Berberidis Cortex via Quantitative Analysis of Multicomponents by Single Marker (QAMS) Combined with Fingerprint and Chemometrics Methods

Table 3

Taking the berberine hydrochloride as the internal standard to calculate the RCF values.

Injection volume (μL)	fs/A	fs/B	fs/C
10	2.4742	0.9914	1.0084
8	2.4476	0.9837	1.0039
6	2.4480	0.9831	0.9975
4	2.4433	0.9768	0.9990
2	2.4476	0.9664	1.0047
1	2.4614	0.9682	1.0072
Mean	2.4537	0.9783	1.0035
RSD (%)	0.48	0.99	0.38

f_s/A: f_{Berberine hydrochloride/magnoflorine}; f_s/B: f_{Berberine hydrochloride/jatrorrhizine hydrochloride}; f_s/C: f_{Berberine hydrochloride/palmatine hydrochloride}.