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Extracted ion chromatograms (EICs) of metabolites in the incubation of quercitrin in the intestinal bacteria in vitro (a) positive ion mode, the m/z of quercitrin and its metabolites in this chromatogram: quercitrin, 449.1152; M3, 303.0526; M4, 319.0583; M5, 305.1601; (b) negative ion mode, the m/z of quercitrin and its metabolites in this chromatogram: quercitrin, 447.1150; M6, 335.0913; M7, 303.0991, M8, 349.0822).
