Quantitative Analysis and Comparison of Flavonoids in Lotus Plumules of Four Representative Lotus Cultivars

Table 1

Regression equation, regression coefficients, linearity, LOD, and LOQ of four flavonoid standards.

Compounds	Regression equation	R^2	Linear range (μg/mL)	LOD (μg/mL)	LOQ (μg/mL)
Isoschaftoside		1.00	2–250	0.18	0.61
Schaftoside		1.00	2–125	0.12	0.40
Rutin		1.00	2–250	0.17	0.59
Isoquercitrin		1.00	2–125	0.17	0.56