Table 1.

The regression equations, linear ranges, LLOQs for the seven analytes in rat plasma.

Compounds	Regression Equation	r	Linear Range (ng/mL)	LLOQ (ng/mL)
aurantio-obtusin	y = 0.02099x + 0.00298	0.9976	0.94–564.0	0.94
obtusifolin	y = 0.04153x + 0.00092	0.9990	1.03–410.0	1.03
questin	y = 0.10900x + 0.00108	0.9997	0.84–84.0	0.84
SC-1	y = 0.04423x + 0.00072	0.9996	1.03–82.80	1.03
rhein	y = 0.00330x + 0.00147	0.9969	1.07–203.0	1.07
emodin	y = 0.05259x + 0.00383	0.9989	1.03–207.0	1.03
SC-2	y = 0.01045x + 0.00036	0.9964	0.90–180.0	0.90