Search Results - "Blinova, I. P."

Replacement of Acetonitrile with Ethanol in the Determination of Anthocyanins by Reversed-Phase High-Performance Liquid Chromatography by Deineka, V. I., Oleinits, E. Yu, Blinova, I. P., Deineka, L. A.

“…It was found experimentally that the replacement of acetonitrile with ethanol upon the acidification of the mobile phase with phosphoric acid is an effective…”
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Specific Features of the Determination of Xanthophyll Esters under Reversed-Phase HPLC Conditions by Deineka, V. I., Burzhinskaya, T. G., Blinova, I. P., Deineka, L. A.

“…Specific features of chromatographic determination of xanthophyll esters are studied using an example of marigold flower lutein diesters under reversed-phase…”
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Selectivity Control of the Separation of Anthocyanins: Replacing Acetonitrile for Methanol in the Mobile Phase by Deineka, V. I., Oleinits, E. Yu, Blinova, I. P., Deineka, L. A.

“…A possibility of replacing acetonitrile for methanol in mobile phases containing an organic modifier, 10 vol. % of formic acid (pH regulator), and water in the…”
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Determination of Carotenoids of Tomato Fruits of Different Colors by Deineka, V. I., Burzhinskaya, T. G., Deineka, L. A., Blinova, I. P.

“…A method for the determination of the composition of carotenoids of tomato fruits of different colors is proposed using a combination of spectrophotometry and…”
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Selectivity of the Separation of Isomeric Chlorogenic Acids under the Conditions of Reversed-Phase HPLC by Deineka, V. I., Oleinits, E. Yu, Blinova, I. P., Deineka, L. A.

“…The selectivity of the separation of isomeric chlorogenic acids often found in natural samples (3, 4, and 5-caffeoylquinic acids, 3CQA , 4CQA , and 5CQA ,…”
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Specific Features of the Spectrophotometric Determination of Monomeric Anthocyanins by Deineka, L. A., Sidorov, A. N., Deineka, V. I., Kul’chenko, Ya. Yu, Blinova, I. P.

“…It was shown that the differential spectrophotometric method for the determination of monomeric anthocyanins (in a mixture with polymeric ones) is unsuitable…”
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Efficiency Maps for Comparing the Properties of Different Chromatographic Systems by Deineka, V. I., Blinova, I. P.

“…Efficiency maps are proposed as plots of the dependence of the peak width at half height Δ 1/2 on the function of the sorbate retention factor, obtained from a…”
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Comparing Two Versions of a Separation Map in Reversed Phase Liquid Chromatography by Deineka, V. I., Oleinits, E. Yu, Blinova, I. P., Deineka, L. A.

“…Two types of separation maps are compared for the first time, based on (1) the dependence of the logarithm of the retention factor on the volume fraction of…”
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Specific Features of the Retention of Lutein Diesters on C16 Stationary Phases with Different Pore Diameters by Deineka, V. I., Staroverov, S. M., Vasiyarov, G. G., Burzhinskaya, T. G., Blinova, I. P.

“…It is shown that the column dead time determined from the retention of uracil is longer than the one determined from the retention of homologs—lutein…”
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Chromatographic Separation and Determination of Anthocyanins under Conditions of Reversed Phase Chromatography, When Used As Mobile Phases of Acetonitrile–Formic Acid/Phosphoric Acid–Water Systems by Deineka, V. I., Oleinits, E. Yu, Kulchenko, Y. Yu, Blinova, I. P., Deineka, L. A.

“…A study is performed of the effect of composition of the mobile phases of acetonitrile–formic acid/phosphoric acid–water systems and the concentrations of…”
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Control of the Selectivity of Separation and the Determination of Anthocyanins of Fruits of Vaccinium Family Plants Using Acetonitrile–Formic Acid–Water Eluents by Deineka, V. I., Oleinits, E. Yu, Kul’chenko, Ya. Yu, Blinova, I. P., Deineka, L. A.

“…It is shown that the selectivity of the separation of 15 anthocyanins from an extract of bilberries (3-galactosides, 3-glucosides and 3-arabinosides of the…”
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Effect of Acylation of Anthocyanins with Acetic Acid on the Retention of Glycosides in Reverse Phase Chromatography by Deineka, V. I., Kul’chenko, Ya. Yu, Deineka, L. A., Blinova, I. P.

“…The effect of acylation of anthocyanins with acetic acid on the chromatographic retention is evaluated. It is shown that the absence of correlations between…”
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Sorption of Anthocyanins on Bentonite Clay by Deineka, V. I., Doronin, A. G., Oleinits, E. Yu, Blinova, I. P., Deineka, L. A., Chulkov, A. N.

“…Patterns of the static sorption of anthocyanins on bentonite clay are determined. It is found that the approach used for static sorption is an alternative to…”
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Determination of Anthocyanins and Chlorogenic Acids in Fruits of Aronia Genus: The Experience of Chemosystematics by Deineka, V. I., Tretyakov, M. Yu, Oleiniz, E. Yu, Pavlov, A. A., Deineka, L. A., Blinova, I. P., Manokhina, L. A.

“…The fruits of several species of the Aronia genus were studied in the content of anthocyanins and chlorogenic acids. It was found that errors in determining…”
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Anthocyanins of Basil Leaves: Determination and Preparation of Dried Encapsulated Forms by Deineka, V. I., Kul’chenko, Ya. Yu, Blinova, I. P., Chulkov, A. N., Deineka, L. A.

“…The anthocyanin composition of five purple leaves cultivars of Ocimum basilicum L. was investigated by reversed-phase HPLC with mass-spectrometric detection by…”
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Using Karapet’yants Comparative Analysis in Chromatography by Deineka, V. I., Kul’chenko, Ya. Yu, Chulkov, A. N., Blinova, I. P., Deineka, L. A.

“…Karapet’yants comparative analysis is applied to anthocyanin retention using the example of an extract of Adonis aestivalis petals. The attribution of…”
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OBTAINING RED CABBAGE ANTHOCYANIN COLORED ENCAPSULATED FORMS BY THE METHOD OF FREEZE-DRYING by Ya. Yu. Kulchenko, V. I. Deineka, L. A. Deineka, I. P. Blinova

“…The method of reversed-phase HPLC with diode-array and mass-spectrometric detection was explored to determine the qualitative composition of red cabbage…”
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Accumulation of anthocyanins and phenolic acids and antioxidant activity of lettuce cultivars grown hydroponically and in the open ground by Oleinits, E. Yu, Sukhodolov, I. A., Konstantinovich, A. V., Deineka, V. I., Blinova, I. P., Deineka, L. A.

“…We assess the level of anthocyanins and phenolic acids accumulated in the leaves of lettuce cultivars grown hydroponically and in the open ground. In addition,…”
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Estimating the Solubility of Anthocyanins Using Cartridges for Solid-Phase Extraction by Deineka, V. I., Deineka, L. A., Sidorov, A. N., Kostenko, M. O., Blinova, I. P.

“…A method for using solid-phase extraction cartridges to estimate the solubility of anthocyanins is proposed. It is shown that at high degrees of the saturation…”
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Hydrophilic interaction chromatography as an alternative to reversed-phase HPLC in determining anthocyanins and betacyanins by Deineka, V. I., Saenko, I. I., Deineka, L. A., Blinova, I. P.

“…We selected the conditions of hydrophilic interaction chromatography for separating anthocyanins and betacyanins using a diol stationary phase and mobile…”
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