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. 2020 Oct 10;11(1):222–236. doi: 10.1016/j.apsb.2020.10.002

Figure 3.

Figure 3

Analysis of LHQW components in a human urine sample using UPLC–HRMS (negative ion mode) and PATBS data-processing. (A) Chromatography profile of full scan MS analysis a blank urine sample (predosed sample). (B) Chromatography profile of full scan MS analysis the human urine sample. (C) Full scan MS spectrum of a LHQW component (Rhein+GluA (164)) at 21.12 min from unprocessed LC–MS dataset of the urine sample. (D) PATBS-processed chromatography profile from full scan MS analysis of the urine sample. (E) The partially enlarged view of (D). (F) Full scan MS spectrum of the LHQW component [Rhein+GluA (164)] from PATBS-processed LC–MS dataset of the urine sample. Green triangle indicates LHQW prototype or metabolite components in urine, while the red triangle indicates the endogenous constituents.