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The influence of divalent diamagnetic metal ions on vicinal trihydroxy phenolic compounds autoxidation in aqueous solutions

dc.contributor.advisorNikolić, Goran M.
dc.contributor.otherNikolić, Ružica
dc.contributor.otherKostić, Danijela
dc.contributor.otherNikolić, Vesna
dc.contributor.otherŽivković, Jelena
dc.creatorVeselinović, Aleksandar M.
dc.date.accessioned2016-01-05T13:23:40Z
dc.date.available2016-01-05T13:23:40Z
dc.date.available2020-07-03T16:11:51Z
dc.date.issued2014-07-21
dc.identifier.urihttp://nardus.mpn.gov.rs/handle/123456789/3965
dc.identifier.urihttp://eteze.ni.ac.rs/application/showtheses?thesesId=1338
dc.identifier.urihttps://fedorani.ni.ac.rs/fedora/get/o:879/bdef:Content/download
dc.identifier.urihttp://vbs.rs/scripts/cobiss?command=DISPLAY&base=70052&RID=1024720873
dc.description.abstractIn this dissertation the influence of divalent diamagnetic metal ions (Mg(II), Ca(II), Sr(II), Ba(II), Zn(II), Cd(II) and Pb(II)) on vicinal trihydroxy phenolic compounds autoxidation in aqueous solutions was examined. Autoxidation processes of pyrogallol (the simplest compound with appropriate structure), gallic acid and ethyl gallate were studied with the application of UV/Vis spectrophotometry with chemometric data processing, EPR spectroscopy, High-performance liquid chromatography (HPLC) and Mass spectrometry (ESI-MS). It was determined that pH value of solution and presence and type of diamagentic metal ions have great influence on investigated compounds autoxidation processes rates and mechanism. With the aid of applied techniques the structures of transition free radical species and stable autoxidation processes products were determined. Obtained results enabled better understanding of investigated compounds autoxidation processes which is of great importance since gallic acid is found in many plants, while ethyl gallate is used as an antioxidant in food.en
dc.formatapplication/pdf
dc.languagesr
dc.publisherУниверзитет у Нишу, Природно-математички факултетsr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172044/RS//
dc.rightsopenAccessen
dc.sourceУниверзитет у Нишуsr
dc.subjectVodeni rastvorisr
dc.subjectautoxidationen
dc.subjectpirogalolsr
dc.subjectgalna kiselinasr
dc.subjectetil-galatsr
dc.subjectpyrogallolen
dc.subjectgallic aciden
dc.subjectethyl-gallateen
dc.subjectdiamagnetic metal ionsen
dc.titleUticaj dijamagnetnih dvovalentnih jona metala na autooksidaciju vicinalnih trihidroksilnih fenolnih jedinjenja u vodenim rastvorimasr
dc.titleThe influence of divalent diamagnetic metal ions on vicinal trihydroxy phenolic compounds autoxidation in aqueous solutionsen
dc.typedoctoralThesis
dc.rights.licenseBY-NC-ND
dcterms.abstractНиколић, Горан М.; Костић, Данијела; Николић, Ружица; Николић, Весна; Живковић, Јелена; Веселиновић, Aлександар М.; Утицај дијамагнетних двовалентних јона метала на аутооксидацију вициналних трихидроксилних фенолних једињења у воденим растворима; Утицај дијамагнетних двовалентних јона метала на аутооксидацију вициналних трихидроксилних фенолних једињења у воденим растворима;
dc.identifier.fulltexthttp://nardus.mpn.gov.rs/bitstream/id/54179/Disertacija.pdf


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