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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.accessioned2022-03-12T17:18:18Z
dc.date.accessioned2026-01-10T18:47:04Z
dc.date.available2022-03-12T17:18:18Z
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 K-2=8.32 +/- 013, at 25 degrees C. For the aluminium and iron complexes logarithms of the stability constants were found: for Al: log K-1=14.05 +/- 0.09, log K-2=10.02 +/- 0.12, and for Iron: log K-1=9.44 +/- 0.11, log K-2=3.86 +/- 0.08.
dc.identifier.doidoiWOS:000232593800001
dc.identifier.eissn2191-0189
dc.identifier.issn0793-0135
dc.identifier.urihttps://hdl.handle.net/11424/227948
dc.identifier.wosWOS:000232593800001
dc.language.isoeng
dc.publisherWALTER DE GRUYTER GMBH
dc.relation.ispartofREVIEWS IN ANALYTICAL CHEMISTRY
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectquercetin
dc.subjectaluminium
dc.subjectiron
dc.subjectstability constant
dc.subjectpotentiometri
dc.subjectspectrophotometri
dc.subjectPLASMA
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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