Figure 2.

MRM chromatograms of the 6 alkaloids and I.S.: (a) blank plasma; (b) blank plasma mixed with the 6 alkaloids and I.S.; (c–f) 1 h plasma sample after administration of RCP (c), HCP (d), RCD (e), and HCD (f).

MRM chromatograms of the 6 alkaloids and I.S.: (a) blank plasma; (b) blank plasma mixed with the 6 alkaloids and I.S.; (c–f) 1 h plasma sample after administration of RCP (c), HCP (d), RCD (e), and HCD (f).