Pinelliae Rhizoma Praeparatum Cum Alumine Extract: Sedative and Hypnotic Effects in Mice and Component Compounds

Figure 4

Extracted ion chromatogram of compounds in PRPCA identified via UPLC/Q-TOF-ESI/MS. (a) Extracted ion chromatogram in positive mode (ESI+). (b) Extracted ion chromatogram in negative mode (ESI–). PRPCA: Pinelliae Rhizoma Praeparatum Cum Alumine; UPLC: ultra-performance liquid chromatography; Q-TOF: quadrupole time-of-flight; ESI: electrospray ionization; MS: mass spectrometry.

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