Research Article

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

Figure 2

Representative multiple reaction monitoring (MRM) chromatograms of compound K and IS in human plasma. (a) A double blank sample (without compound K and IS); (b) blank sample (without compound K and with IS at 454.55 ng/mL); (c) LLOQ sample (compound K at 1 ng/mL and IS at 454.55 ng/mL); (d) a volunteer sample taken 6 h after administration of 3 g HYFRG, corresponding to a concentration of 115 ng/mL. The retention times of compound K and IS were 1.52 min and 0.79 min, respectively.
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