Simultaneous Determination of Six Active Components in Danggui Kushen Pills via Quantitative Analysis of Multicomponents by Single Marker

Table 2

The linear equations, coefficient of determination, and linear range of six components.

Constituent	Linear equation	Linear range (μg·mL^−1)	r	LOD (μg·mL^−1)	LOQ (μg·mL^−1)
Matrine	Y = 6.9958X − 7.136	23.84∼715.08	0.9998	0.08	0.24
Gallic acid	Y = 27.728X − 3.6914	0.89∼26.64	0.9999	0.07	0.21
Oxymatrine	Y = 8.6405X + 138.3	231.05∼6931.56	0.9998	0.11	0.31
Catechin	Y = 37.684X + 4.6647	0.11∼3.42	0.9999	0.01	0.04
Rutin	Y = 10.578X + 1.9008	0.35∼10.38	0.9997	0.04	0.11
Ferulic acid	Y = 10.658X + 18.793	10.96∼328.92	0.9998	0.08	0.23