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. 2018 Nov 26;23(12):3083. doi: 10.3390/molecules23123083

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© 2018 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Main results of 3,5,7-trihydroxychromone in the UPLC-ESI-Q-TOF-MS/MS analysis: (A) Total ion chromatographic diagram of 3,5,7-trihydroxychromone; (B) primary MS spectra of 3,5,7-trihydroxychromone; (C) MS/MS spectra of 3,5,7-trihydroxychromone; (D) total ion chromatographic diagram of 3,5,7-trihydroxychromone-DPPH adduct; (E) primary MS spectra of 3,5,7-trihydroxychromone-DPPH^•; and (F) MS/MS spectra of 3,5,7-trihydroxychromone-DPPH adduct.