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dc.creatorMaksimović, Jelena
dc.creatorČupić, Željko
dc.creatorManojlović, Nedeljko
dc.creatorĐerić, Aleksandra
dc.creatorAnić, Slobodan
dc.creatorKolar-Anić, Ljiljana
dc.date.accessioned2020-08-05T10:18:05Z
dc.date.available2020-08-05T10:18:05Z
dc.date.issued2020
dc.identifier.issn1878-5190
dc.identifier.issn1878-5204
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/3603
dc.description.abstractTwo hydroxyanthraquinones, alizarin and purpurin, that have been used throughout history as a natural pigment, were extracted from roots of Rubia tinctorum from Serbia. As substances with important chemical activities and, therefore, with wide applications (for example in dyeing textile fabrics as well as in pharmacy because of their anti-inflammatory, anti-cancer, antiviral, antimicrobial and antioxidant activities, etc.) they were analyzed in the kinetically very sensitive Bray–Liebhafsky (BL) oscillatory reaction. However, although they are both, hydroxyanthraquinones it is shown that their interactions with BL nonlinear reaction system differ significantly. Consequently, two different reactions were used to explain the mechanism of their chemical activities. The numerical simulations based on a standard model of the BL oscillatory reaction together with proposed reactions due to alizarin/purpurin interactions with a matrix are correlated with experimental investigations. Moreover, it is shown that very small amounts of alizarin and purpurin (from about 1 × 10–7 M) produce the response of the BL matrix such that micro-quantitative analysis based on the BL oscillatory reaction can be successfully performed in this reaction system. The linear response of the BL matrix on the presence of alizarin and purpurin (necessary for microquantitative determination) is analyzed as a function of two concentration sensitive parameters: pre-oscillatory period τ1 and potential shift after perturbation ΔE.en
dc.language.isoensr
dc.publisherSpringer Nature Switzerland AG 2020sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172015/RS//sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2020/200026/RS//sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2020/200111/RS//sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2020/200146/RS//sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45001/RS//sr
dc.rightsrestrictedAccesssr
dc.sourceReaction Kinetics, Mechanisms and Catalysissr
dc.subjectKinetic determination of alizarin and purpurinsr
dc.subjectBray–Liebhafsky oscillatory reaction as the matrix systemsr
dc.subjectMicroquantitative determination of alizarin and purpurinsr
dc.subjectMechanism of interactionsr
dc.subjectExtraction of alizarin and purpurin from roots of Rubia tinctorumsr
dc.titleBray–Liebhafsky oscillatory reaction as the matrix system for the kinetic determination of microquantities of alizarin and purpurinen
dc.typearticlesr
dc.rights.licenseARRsr
dcterms.abstractКолар‑Aнић, Љиљана; Aнић, Слободан; Манојловић, Недељко; Максимовић, Јелена; Чупић, Жељко; Ђерић, Aлександра;
dc.citation.volume130
dc.citation.spage655
dc.citation.epage688
dc.citation.rankM23~
dc.identifier.doi10.1007/s11144-020-01798-5
dc.identifier.scopus2-s2.0-85086167239
dc.identifier.wos000539198600001
dc.type.versionpublishedVersionsr


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