Quality Analysis of Long dan Xie gan Pill by a Combination of Fingerprint and Multicomponent Quantification with Chemometrics Analysis

Table 3

Regression equations, linearity, determination coefficient, and limits of detection and quantification of the method.

Components	Regression equations	Linear range (μg·mL^−1)	R^2	LOD (ng)	LOQ (ng)
Gentiopicrin	y = 11524 x + 12562	7.76∼485.27	0.9999	0.837	2.790
Baicalin	y = 32266 x + 4256.2	7.88∼492.56	0.9999	0.431	1.077
Baicalein	y = 43732 x − 23130	7.39∼461.77	0.9999	0.439	1.025
Wogonin	y = 47996 x + 23628	3.25∼203.20	0.9999	0.190	0.474