Elucidation of the Intestinal Absorption Mechanism of Loganin in the Human Intestinal Caco-2 Cell Model

Figure 2

Typical chromatogram of a separation of loganin (1) and IS (2) in fresh blank HBSS (A) and a sample (B) 5 minutes after transport experiments by LC/MS/MS (45.97ng/mL for loganin and 0.08ng/mL for IS).