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. 2021 Nov 26;26(23):7182. doi: 10.3390/molecules26237182

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© 2021 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 (https://creativecommons.org/licenses/by/4.0/).

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Identification procedure for luteolin glucoside isomers (a) EIC of m/z 447.0933 ( ± 0.005 mDa) in an olive sample; (b) Background subtracted MS spectrum from 5.3 to 5.4 min; (c) Molecular formula annotation of m/z 447.0933; (d) Background subtracted MS/MS spectrum from 5.3 to 5.4 min; (e) Background subtracted MS/MS spectrum from 6.0 to 6.1 min; (f) Background subtracted MS/MS spectrum from 6.3 to 6.5 min; (g) Structures of precursor and fragment ions of luteolin glucosides; (h) Riken Plant Specialized Metabolome Annotation (PlaSMA) Authentic Standard Library RIKENPlaSMA005600.

Identification procedure for luteolin glucoside isomers (a) EIC of m/z 447.0933 ( ± 0.005 mDa) in an olive sample; (b) Background subtracted MS spectrum from 5.3 to 5.4 min; (c) Molecular formula annotation of m/z 447.0933; (d) Background subtracted MS/MS spectrum from 5.3 to 5.4 min; (e) Background subtracted MS/MS spectrum from 6.0 to 6.1 min; (f) Background subtracted MS/MS spectrum from 6.3 to 6.5 min; (g) Structures of precursor and fragment ions of luteolin glucosides; (h) Riken Plant Specialized Metabolome Annotation (PlaSMA) Authentic Standard Library RIKENPlaSMA005600.