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Potentiometric and spectrophotometric determination of the stability constants of quercetin (3,3′,4′,5,7-pentahydroxyflavone) complexes with aluminium(III) and iron(II)

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dc.contributor.authorsErdogan G., Karadag R., Dolen E.
dc.date.accessioned2022-03-28T14:52:53Z
dc.date.accessioned2026-01-11T19:13:52Z
dc.date.available2022-03-28T14:52:53Z
dc.date.issued2005
dc.description.abstractIn this study, the stability constants of the complexes of quercetin formed with aluminium(III) and iron(II) were determined potentiometrically by using the Calvin-Bjerrum and Irving Rossotti methods and spectrophotometrically. The evaluated protonation constants of the ligand were found: log K 1=9.63±0.11 and log K2 = 8.32±013, at 25°C. For the aluminium and iron complexes logarithms of the stability constants were found: for Al: log K1=14.05±0.09, log K 2=10.02±0.12, and for Iron: log K1=9.44±0. 11, log K2=3.86±0.08.
dc.identifier.issn7930135
dc.identifier.urihttps://hdl.handle.net/11424/255926
dc.language.isoeng
dc.relation.ispartofReviews in Analytical Chemistry
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAluminium
dc.subjectIron
dc.subjectPotentiometri
dc.subjectQuercetin
dc.subjectSpectrophotometri
dc.subjectStability constant
dc.titlePotentiometric and spectrophotometric determination of the stability constants of quercetin (3,3′,4′,5,7-pentahydroxyflavone) complexes with aluminium(III) and iron(II)
dc.typearticle
dspace.entity.typePublication
oaire.citation.endPage261
oaire.citation.issue4
oaire.citation.startPage247
oaire.citation.titleReviews in Analytical Chemistry
oaire.citation.volume24

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