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  1. RePhyChem
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  3. Journal Article
Please use this identifier to cite or link to this item: https://dspace.ffh.bg.ac.rs/handle/123456789/1690
Title: Microquantitative determination of hesperidin by pulse perturbation of the oscillatory reaction system
Authors: Pejić, Natasa
Blagojević, Slavica
Anić, Slobodan 
Vukojević, Vladana
Kolar-Anić, Ljiljana 
Keywords: Bray-Liebhafsky oscillatory reaction;Determination of hesperidin;Flavonoids;Microquantitative analysis;Perturbation technique
Issue Date: Feb-2005
Journal: Analytical and bioanalytical chemistry
Abstract: 
A simple and reliable kinetic method for the determination of hesperidin (Hesp) is developed. It is based on potentiometric monitoring of the concentration perturbations of the matrix reaction system which is in a stable non-equilibrium stationary state close to the bifurcation point. The Bray-Liebhafsky oscillatory reaction is used as the matrix system. The response of the matrix to perturbations by different concentrations of Hesp is followed by using a Pt electrode. A linear relationship between maximal potential shift and the logarithm of Hesp concentrations is obtained between 7.5 and 599.4 microg mL-1. The limit of detection is 0.65 microg mL-1. The described procedure has been successfully applied to the determination of Hesp from different sources (capsules, industrial and hand-squeezed orange juice, and white wine).
URI: https://dspace.ffh.bg.ac.rs/handle/123456789/1690
ISSN: 1618-2642
DOI: 10.1007/s00216-004-2913-6
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University of Belgrade
Faculty of Physical Chemistry
Studentski trg 12-16
11158 Belgrade 118
PAC 105305
SERBIA
University of Belgrade Faculty of Physical Chemistry