Enhanced Absorption Study of Ginsenoside Compound K (20-O-β-(D-Glucopyranosyl)-20(S)-protopanaxadiol) after Oral Administration of Fermented Red Ginseng Extract (HYFRG™) in Healthy Korean Volunteers and Rats

Table 2

Intraday () and interday () precision and assay accuracy of quality control samples at four concentrations (1, 3, 300, and 1000 ng/mL) for the determination of compound K concentration in human plasma.

Theoretical concentration; (ng/mL)	Acquired concentration (ng/mL) (mean ± SD)		Precision (CV%)		Accuracy (%)
	Intraday	Interday	Intraday	Interday	Intraday	Interday
1			12.44	12.41	97.68	102.34
3			6.66	11.03	85.29	98.79
300			2.81	8.37	98.05	107.41
1000			2.70	6.34	109.69	101.87