Figure 1

Chromatograms of Zhuyeqing Liquor (ZYQL) and the standard reference. (A) HPLC-PDA chromatogram of ZYQL monitored at 254 nm; (B) HPLC-PDA chromatogram of standard reference monitored at 254 nm. (C) Representative UPLC-TOF-MS positive ion mode chromatogram (From up to down: Compound 33, Zhizi, Shannai, Zhuyeqing Liquor).