Table 2.

The calibration curves for TSG, EDG, and emodin.

Compound	Typical equations	R2	Weigh	Concentration range	LLOQ (RE%)
TSG	Y = 1.949 × X + 0.0457	0.999	1/X	1∼1000 ng	102.9 ± 15.2
EDG	Y = 2.032 × X + 0.1037	0.999	1/X	1∼1000 ng	105.9 ± 15.8
Emodin	Y = 2.204 × X + 0.0249	0.997	1/X	1∼1000 ng	89.19 ± 5.6