Relationship between the UPLC Fingerprints of Citrus reticulata “Chachi” Leaves and Their Antioxidant Activities

Table 2

UPLC calibration curve data for reference standards.

Compound	Wavelength (nm)	Regression equation	Correlation coefficient (R^2)	Linear ranges (μg/mL)
Hesperidin	283	Y = 6453.5X − 91994	0.9999	262∼1046
Tangeretin	323	Y = 2 × 10^10X − 41461	0.9999	0.0159∼0.080
Nobiletin	330	Y = 10^10X − 20835	0.9995	0.048∼0.144
5-Demethylnobiletin	340	Y = 10^10X − 36311	0.9999	0.041∼0.247