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. 2019 Aug 24;7(3):63. doi: 10.3390/biomedicines7030063

Figure 1.

Figure 1

The full scan mode total ion chromatogram of licorice root hot water infusion from a negative mode of UPLC-ESI-MS/MS analysis (A). The SIM channels (B–E) and mass spectra of the full-scan of selected four major phytochemicals; thymohydroquinone (b), liquiritin (c), kaemferol (d), and glabridin (e) are shown for m/z of deprotonated ions of 165.22, 417.39, 285.23, and 323.97, respectively. The identified phytochemical name and chemical structure are presented. SIM: Selective ion monitoring scan; TIC: Total ion chromatograms, UPLC-ESI-MS/MS: Ultra-performance liquid chromatographic-electrospray ionization-tandem mass spectrometry.