Effect of Oral Coadministration of Ascorbic Acid with Ling Zhi Preparation on Pharmacokinetics of Ganoderic Acid A in Healthy Male Subjects: A Randomized Crossover Study

Figure 1

Chromatograms of plasma sample containing 8.00 ng/mL of ganoderic acid A (retention time = 6.31 min) and 2.50 ng/mL of IS (retention time = 10.08 min). The quantitation was performed using the single ion monitoring (SIM) method with mass-to-charge ratio () of 499.3 for ganoderic acid A and of 403.3 for IS.