Antioxidants As Analytes in Analytical Chemistry

Будников, Г. К.; Ziyatdinova, Guzel

doi:10.1007/s10809-005-0146-2

Cited by 16 publications

(7 citation statements)

References 95 publications

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“…Interesting is that the analysis of literature on antioxidants in agricultural products discloses a particular interest in studies of antioxidant capacity of wines. [183][184][185][186][187][188][189][190] Numerous methods have been developed to monitor lipid hydroperoxide formation and antioxidative activity, 191,192 which utilize determination of lipid-oxidized product, oxygen consumption or discoloration of β-carotene. Chemiluminescent assays for antioxidant capacity of biological materials are widely used and essential portion of them utilize luminol reactions as the luminescence probe.…”

Section: Importance Of Antioxidants General Remarksmentioning

confidence: 99%

Peroxy-radical-mediated chemiluminescence: mechanistic diversity and fundamentals for antioxidant assay

Fedorova¹,

Trofimov²,

Vasil’ev³

et al. 2006

Arkivoc

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Herein, we give a retrospective overview and analyze recent developments in the field of chemiluminescence derived from organic oxidation processes (so called oxychemiluminescence), most prominently, mediated by peroxy radicals. As evidenced from the presented analysis, the diversities of the reaction and the excited-state-generation mechanisms are governed mainly by a diverse chemical nature of substrates being oxidized. The notable oxychemiluminescence cases, which involve peroxy radicals as key reactive species, refer to oxidation of saturated and unsaturated hydrocarbons, polymers, lipids and proteins. The general feature of the considered chemiluminescence processes pertains to a formation of high-energy cyclic intermediates (tetroxides and/or dioxetanes), whose cleavage yields electronically excited products. The considered modes of the chemiluminescence enhancement encompass the energytransfer and the electron-transfer mechanisms. Most prominent application of the discussed oxychemiluminescence phenomenon resides in a versatile chemiluminescent assay to monitor antioxidants (both their concentration and reactivity) in chemical and biological media.

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Section: Importance Of Antioxidants General Remarksmentioning

confidence: 99%

Peroxy-radical-mediated chemiluminescence: mechanistic diversity and fundamentals for antioxidant assay

Fedorova¹,

Trofimov²,

Vasil’ev³

et al. 2006

Arkivoc

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“…The most common and effective AOs are tocopherols (vitamin E), carotenoids, ascorbic acid, wide range of natural and synthetic phenolic compounds (eugenol and its derivatives, gallic acid and its derivatives, hydroxybenzoic and hydroxycinnamic acids, flavonoids, stilbenes, substituted hydroxybenzenes), sulfur-containing amino acids (cysteine, methionine, lipoic acid) and tripeptide glutathione, biogenic amines, some steroid hormones, phospholipids and blood proteins [5].…”

mentioning

confidence: 99%

Analytical Capabilities of Coulometric Sensor Systems in the Antioxidants Analysis

Ziyatdinova

Budnikov

2021

Chemosensors

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The definition of antioxidants (AOs), their classification and properties as well as electrochemical sensor systems for AOs analysis are briefly discussed. The analytical capabilities of coulometric titration with electrogenerated titrants as sensor systems for AOs determination have been considered in detail. The attention focused on the individual AO quantification that was mainly used in the pharmaceutical analysis and estimation of total antioxidant parameters (total antioxidant capacity (TAC), ferric reducing power (FRP) and ceric reducing/antioxidant capacity (CRAC)) allowing the fast screening of the target samples including their quality control. The main advantages of coulometric sensor systems are pointed out. The selective quantification of individual AO in a complex matrix using a combination of chromatography with coulometric or coulometric array detection under potentiostatic mode is discussed. The future development of coulometric sensor systems for AOs analysis is focused on the application of novel coulometric titrants and the application of coulometric detection in flow injection analysis.

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“…High-performance liquid chromatography (HPLC). HPLC is an exceedingly convenient method for solving practically any problems that arise during quantitative analysis of the group D vitamins [27,37,38]. The significance of this method will evidently increase in the future.…”

Section: Chromatographic Analytical Methodsmentioning

confidence: 99%

Quality Control Methods for Group D Vitamins

2008

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Determination of the content of vitamin D is a rather difficult problem. In the present study, we have compared methods that are most widely used for determining group D vitains. In recent years, physical and chemical methods of analysis have found increasing use due to their simplicity, sensitivity, and information value. Various methods of quality control are currently used but the future in the analysis of calciferols undoubtedly belongs to HPLC. This method is capable of simultaneously solving all problems encountered in the analysis of group D vitamins.

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Antioxidants As Analytes in Analytical Chemistry

Cited by 16 publications

References 95 publications

Peroxy-radical-mediated chemiluminescence: mechanistic diversity and fundamentals for antioxidant assay

Peroxy-radical-mediated chemiluminescence: mechanistic diversity and fundamentals for antioxidant assay

Analytical Capabilities of Coulometric Sensor Systems in the Antioxidants Analysis

Quality Control Methods for Group D Vitamins

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