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. Author manuscript; available in PMC: 2009 Sep 22.
Published in final edited form as: J Agric Food Chem. 2009 Feb 11;57(3):820–825. doi: 10.1021/jf802601j

Figure 7.

Figure 7

Mass spectrum of A) Liquiritin B) Liquiritigenin C) Isoliquiritigenin D) 7, 4′-Dihydroxy flavone E) Isononin. The accurate mass (high resolution) of the compounds was measured by TOF instrument.