LC-DAD-ESI/MS analysis of flavonoids and abscisic acid with chemometric approach for the classification of Slovenian honey

► LC-DAD-ESI/MS was used for the analysis of flavonoids in a complex matrix like honey. ► The honey samples had similar, but quantitatively different, flavonoid profiles. ► Two non-phenolic compounds, isomers of abscisic acid, were determined. ► No possible markers for honey-type authentication were confirmed. ► LDA correctly classified 85% of honey samples according to their botanical origins.