Quantitative and Qualitative Characterization of Gentiana rigescens Franch (Gentianaceae) on Different Parts and Cultivations Years by HPLC and FTIR Spectroscopy

Table 1

The calibration curves, , LOD, and LOQ of the standard compounds.

Analytes	Calibration curves	Linearity (μg/mL)		LOD (μg/mL)	LOQ (μg/mL)
Loganic acid		4.4–800.0	0.99995	5.3	19.1
Swertiamarin		1.7–800.0	0.99991	4.1	13.8
Gentiopicroside		49.8–3600.0	0.99991	42.9	142.9
Sweroside		1.8–700.0	0.99996	7.1	23.5