TABLE 6.

Precision of diosgenin, charantin, and hydroxychalcone in rat plasma.

Marker compounds	Concentration (µg/ml)	Intra-day assay	Inter-day assay
		%RSD	%RSD
Diosgenin	0.4	0.91	0.90
	0.8	1.42	1.39
	1.2	0.44	1.00
Charantin	0.4	1.50	0.77
	0.8	0.51	1.50
	1.2	0.21	1.15
Hydroxychalcone	0.4	0.91	1.06
	0.8	0.49	0.33
	1.2	1.25	0.73

(n = 3).