Detection of the Content of Two Coumarins, IM and ISOIM, and Their Mechanism of Action on Colitis Rats in Angelica albicans

Table 3

Precision and accuracy of IM and ISOIM in rat plasma.

Constituents	Conc. nominal (ng/mL)	Intraday			Interday
		Estimated conc. (ng/mL)	RE (%)	RSD (%)	Estimated conc. (ng/mL)	RE (%)	RSD (%)
IM	2	1.90	-6.90	8.30	1.90	-4.90	8.70
	50	49.40	-2.20	3.90	49.90	-0.50	4.50
	150	149.10	-0.60	3.80	151.70	1.20	3.10
ISOIM	2	1.90	-5.10	07	02	-4.10	4.40
	50	50.30	01	3.60	48.60	-5.60	2.80
	150	150.20	0.10	1.90	151.40	0.90	1.80