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. 2018 Sep 29;8(4):58. doi: 10.3390/metabo8040058

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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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Head-to-tail spectral comparisons between the experimental MS/MS spectra and the referenced library MS/MS spectra. (A) Peak 1: Isoquercitrin, (B) peak 2: a catechin derivative; (C) peak 3: eriodictyol-7-O-glucoside, (D) peak 4: quercitrin, (E) peak 5: azelaic acid, (F) peak 6: glansreginin A. In each comparison, the experimental MS/MS spectra (upper) and the referenced library MS/MS spectra (lower). Since compound 6 was tentatively identified by MetFrag in silico interpretation of the MS/MS spectrum, head-to-tail of this spectral comparison did not show.

Head-to-tail spectral comparisons between the experimental MS/MS spectra and the referenced library MS/MS spectra. (A) Peak 1: Isoquercitrin, (B) peak 2: a catechin derivative; (C) peak 3: eriodictyol-7-O-glucoside, (D) peak 4: quercitrin, (E) peak 5: azelaic acid, (F) peak 6: glansreginin A. In each comparison, the experimental MS/MS spectra (upper) and the referenced library MS/MS spectra (lower). Since compound 6 was tentatively identified by MetFrag in silico interpretation of the MS/MS spectrum, head-to-tail of this spectral comparison did not show.