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dc.creatorMaksimović, Jelena
dc.creatorKolar-Anić, Ljiljana
dc.creatorAnić, Slobodan
dc.creatorRibić, Dragana D.
dc.creatorPejić, Nataša
dc.date.accessioned2019-09-02T11:24:53Z
dc.date.available2019-09-02T11:24:53Z
dc.date.issued2011
dc.identifier.issn0103-5053
dc.identifier.urihttp://farfar.pharmacy.bg.ac.rs/handle/123456789/1536
dc.description.abstractA novel procedure for kinetic determination of some water-soluble vitamins of the B-group (thiamine (B-1), riboflavin (B-2), niacin (B-3) and pyridoxine (B-6)) by the concentration perturbations of the Bray-Liebhafsky (BL) oscillatory chemical system involving the catalytic decomposition of hydrogen peroxide in the presence of both hydrogen and iodate ions is proposed and validated. The method uses a Pt electrode for potentiometric monitoring of the concentration perturbations of the BL matrix in a stable non-equilibrium stationary state close to the bifurcation point. The proposed method relies on the linear relationship between maximal potential displacements, Delta E-m, caused by the additional known quantities of a B species. Under the optimal established analytical conditions, linear calibration curves were obtained over the range of 0.01-1.0, 0.016-0.128, 5.0-50.0 and 0.05-2.5 mu mol with the limits of detection of 0.01, 0.018, 2.6 and 0.03 mu mol, as well as analytical throughput of 30, 5, 12 and 20 determinations per hour, for B-1, B-2, B-3 and B-6, respectively. The used technical approach also provides simple, effective and convenient method to assay the pharmaceutical formulations containing B-1 together with other active principles such as nicotinamide and vitamin B-12 as well as B-3.en
dc.publisherSoc Brasileira Quimica, Sao Paulo
dc.relationinfo:eu-repo/grantAgreement/MESTD/MPN2006-2010/142025/RS//
dc.rightsopenAccess
dc.sourceJournal of the Brazilian Chemical Society
dc.subjectpulse perturbationsen
dc.subjectBray-Liebhafsky oscillatory reactionen
dc.subjectkinetic determinationen
dc.subjectwater-soluble B vitaminsen
dc.subjectpharmaceutical preparationsen
dc.titleQuantitative Determination of Some Water-Soluble B Vitamins by Kinetic Analytical Method Based on the Perturbation of an Oscillatory Reactionen
dc.typearticle
dc.rights.licenseBY
dcterms.abstractПејић, Наташа; Колар-Aнић, Љиљана; Aнић, Слободан; Рибић, Драгана Д.; Максимовић, Јелена;
dc.citation.volume22
dc.citation.issue1
dc.citation.spage38
dc.citation.epage48
dc.citation.other22(1): 38-48
dc.citation.rankM22
dc.identifier.wos000285886500005
dc.identifier.scopus2-s2.0-78650927867
dc.identifier.rcubconv_2383
dc.type.versionpublishedVersion


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