Quality Assessment of Licorice Based on Quantitative Analysis of Multicomponents by Single Marker Combined with HPLC Fingerprint

Table 2

The regression equations, limits of detections (LODs), and limits of quantity (LOQs) of eleven compounds.

Analytes	Regression equation	R	Linear ranges (μg/mL)	LOD (μg/mL)	LOQ (μg/mL)
L1	Y = 632,698X + 12922	0.9999	0.006∼10.600	0.056	0.173
L2	Y = 671,520X + 167.53	0.9999	0.006∼10.000	0.020	0.066
L3	Y = 771,628X−17609	0.9999	0.136∼3.533	0.002	0.008
L4	Y = 1,715,420.24X−3,985.90	0.9999	0.004∼0.615	0.047	0.142
L5	Y = 1,631,646.21X + 7,366.99	0.9999	0.006∼0.831	0.058	0.186
L6	Y = 2,861,225.81X−4,336.31	0.9999	0.011∼0.738	0.041	0.113
L7	Y = 2,401,806.09X−3,173.10	0.9999	0.005∼0.615	0.037	0.10
L8	Y = 1,837,868.82X−9,926.36	0.9999	0.005∼9.200	0.032	0.097
L9	Y = 798,408X−494.05	0.9999	0.002∼0.661	0.012	0.038
L10	Y = 762,911X−21434	0.9999	0.400∼14.000	0.048	0.157
L11	Y = 1,496,816.51X−7,318.86	0.9999	0.007∼0.800	0.044	0.135