Components of Goutengsan in Rat Plasma by Microdialysis Sampling and Its Protection on Aβ_1–42-Induced PC12 Cells Injury

Figure 4

(a) UPLC chromatogram of Goutengsan in rat blood samples. (b) Mass spectra of 6 metabolites in rat blood samples. 1, liquiritin (Chemical Structure: C₂₁H₂₂O₉, MW: 418.39); 2, rhynchophylline (chemical structure: C₂₁H₂₂O₉, MW: 384.47); 3, isorhynchophylline (Chemical Structure: C₂₁H₂₂O₉, MW: 384.47); 4, corynoxeine (chemical structure: C₂₁H₂₂O₉, MW: 382.45); 5, isocorynoxeine (Chemical Structure: C₂₁H₂₂O₉, MW: 382.45); 6, pachymic acid (chemical structure: C₂₁H₂₂O₉, MW: 418.39).

(a)

(b)