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Quantitative Determination of Some Water-Soluble B Vitamins by Kinetic Analytical Method Based on the Perturbation of an Oscillatory Reaction
dc.creator | Maksimović, Jelena | |
dc.creator | Kolar-Anić, Ljiljana | |
dc.creator | Anić, Slobodan | |
dc.creator | Ribić, Dragana D. | |
dc.creator | Pejić, Nataša | |
dc.date.accessioned | 2019-09-02T11:24:53Z | |
dc.date.available | 2019-09-02T11:24:53Z | |
dc.date.issued | 2011 | |
dc.identifier.issn | 0103-5053 | |
dc.identifier.uri | https://farfar.pharmacy.bg.ac.rs/handle/123456789/1536 | |
dc.description.abstract | A 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.publisher | Soc Brasileira Quimica, Sao Paulo | |
dc.relation | info:eu-repo/grantAgreement/MESTD/MPN2006-2010/142025/RS// | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | Journal of the Brazilian Chemical Society | |
dc.subject | pulse perturbations | en |
dc.subject | Bray-Liebhafsky oscillatory reaction | en |
dc.subject | kinetic determination | en |
dc.subject | water-soluble B vitamins | en |
dc.subject | pharmaceutical preparations | en |
dc.title | Quantitative Determination of Some Water-Soluble B Vitamins by Kinetic Analytical Method Based on the Perturbation of an Oscillatory Reaction | en |
dc.type | article | |
dc.rights.license | BY | |
dcterms.abstract | Пејић, Наташа; Колар-Aнић, Љиљана; Aнић, Слободан; Рибић, Драгана Д.; Максимовић, Јелена; | |
dc.citation.volume | 22 | |
dc.citation.issue | 1 | |
dc.citation.spage | 38 | |
dc.citation.epage | 48 | |
dc.citation.other | 22(1): 38-48 | |
dc.citation.rank | M22 | |
dc.identifier.wos | 000285886500005 | |
dc.identifier.scopus | 2-s2.0-78650927867 | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_farfar_1536 | |
dc.type.version | publishedVersion |
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