Search Results - "Apyari, V. V."

Aqueous Two-Phase Systems Based on Cationic and Anionic Surfactants Mixture for Rapid Extraction and Colorimetric Determination of Synthetic Food Dyes by Smirnova, Svetlana V, Apyari, Vladimir V

“…In this study, aqueous two-phase systems (ATPSs) containing a cationic and anionic surfactants mixture were used for the preconcentration of the synthetic food…”
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Multi-class, multi-residue determination of 132 veterinary drugs in milk by magnetic solid-phase extraction based on magnetic hypercrosslinked polystyrene prior to their determination by high-performance liquid chromatography–tandem mass spectrometry by Melekhin, A.O., Tolmacheva, V.V., Goncharov, N.O., Apyari, V.V., Dmitrienko, S.G., Shubina, E.G., Grudev, A.I.

“…•A multi-class multi-residue analytical method for veterinary drugs was developed.•A total of 132 veterinary drugs from almost 15 classes were investigated.•A…”
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Dispersive Liquid–Liquid Microextraction of Organic Compounds: An Overview of Reviews by Dmitrienko, S. G., Apyari, V. V., Tolmacheva, V. V., Gorbunova, M. V.

“…Dispersive liquid–liquid microextraction (DLLME) is one of the most promising methods of the microextraction preconcentration of organic compounds. This method…”
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Colorimetry in Chemical Analysis by Monogarova, O. V., Oskolok, K. V., Apyari, V. V.

“…The review systematizes the works of the researchers of the Division of Analytical Chemistry at the Moscow State University in the field of chemical…”
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Formation of plasmonic silver nanoparticles by flavonoid reduction: A comparative study and application for determination of these substances by Terenteva, E.A., Apyari, V.V., Dmitrienko, S.G., Zolotov, Yu.A.

“…[Display omitted] •Formation of silver nanoparticles by flavonoid reduction was studied.•A role of different type flavonoids during AgNPs green synthesis was…”
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Rapid multi-residue LC-MS/MS determination of nitrofuran metabolites, nitroimidazoles, amphenicols, and quinolones in honey with ultrasonic-assisted derivatization – magnetic solid-phase extraction by Melekhin, A.O., Tolmacheva, V.V., Goncharov, N.O., Apyari, V.V., Parfenov, M.Yu, Bulkatov, D.P., Dmitrienko, S.G., Zolotov, Yu.A.

“…A rapid multi-residue LC-MS/MS method for the identification and determination of banned veterinary drugs in honey was developed. A total of 31 investigated…”
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Liquid–Liquid Extraction of Organic Compounds into a Single Drop of the Extractant: Overview of Reviews by Dmitrienko, S. G., Apyari, V. V., Tolmacheva, V. V., Gorbunova, M. V.

“…Single-drop microextraction (SDME) and hollow-fiber membrane microextraction (HFME) belong to methods of the liquid-phase microextraction preconcentration of…”
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A Sorption–Spectrometric Method for Quantitation of Catecholamines in Urine and Plasma Using Hypercrosslinked Polystyrene and Gold Nanorods or Their Nanocomposites by Gorbunova, M. V., Tolmacheva, V. V., Apyari, V. V.

“…The possibility of combining solid-phase extraction of natural catecholamines (adrenaline, norepinephrine, and dopamine) on a microcolumn filled with…”
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Prospects for the Use of Analytical Systems Based on Silver Triangular Nanoplates for the Spectrophotometric Determination of Reductants by Furletov, A. A., Apyari, V. V., Garshev, A. V., Dmitrienko, S. G.

“…Possibilities of using analytical systems based on silver triangular nanoplates for the spectrophotometric determination of reductants are studied. It is found…”
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A Three-Reagent "Green" Paper-Based Analytical Device for Solid-Phase Spectrometric and Colorimetric Determination of Dihydroquercetin by Apyari, Vladimir V, Furletov, Aleksei A, Kalinin, Vyacheslav I, Dmitrienko, Stanislava G, Zolotov, Yury A

“…Microfluidic paper-based analytical devices (µPADs) represent one of the promising green analytical strategies for low-cost and simple determination of various…”
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Homogeneous Liquid–Liquid Microextraction of Organic Compounds by Dmitrienko, S. G., Apyari, V. V., Gorbunova, M. V., Tolmacheva, V. V., Zolotov, Yu. A.

“…Published data on various versions of the homogeneous liquid–liquid microextraction (HLLME) of organic compounds are generalized and systematized, and a…”
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Potentialities of differently-stabilized silver nanoparticles for spectrophotometric determination of peroxides by Apyari, V.V., Terenteva, E.A., Kolomnikova, A.R., Garshev, A.V., Dmitrienko, S.G., Zolotov, Yu.A.

“…One of the possible ways for using silver nanoparticles (AgNPs) in spectrophotometry is their application for the determination of oxidizing agents, based on…”
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Dispersive and Magnetic Solid-Phase Extraction of Organic Compounds: Review of Reviews by Dmitrienko, S. G., Apyari, V. V., Tolmacheva, V. V., Gorbunova, M. V., Furletov, A. A.

“…Dispersive solid-phase extraction ( DSPE ) and magnetic solid-phase extraction ( MSPE ) are methods of solid-phase sorption preconcentration. Compared to…”
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Monitor Calibrator as an Alternative to Spectrofluorimeter: Determination of Quinine in Beverages and Medicinal Preparations by Gorbunova, M. V., Terentev, T. A., Apyari, V. V., Dmitrienko, S. G., Zolotov, Yu. A.

“…A possibility of using a monitor calibrator for the determination of luminescent compounds is shown on an example of quinine. The determination is based on the…”
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Rapid Hydrolysis and Derivatization of Nitrofuran Metabolites with a New Derivatizing Agent 5-Nitro-2-Furaldehyde in Their Determination in Chicken Meat by HPLC–MS/MS by Melekhin, A. O., Tolmacheva, V. V., Kholyavskaya, Yu. N., Sedykh, E. S., Dmitrienko, S. G., Apyari, V. V., Bairov, A. L.

“…We proposed a procedure for the rapid sample preparation of food samples for the determination of nitrofuran metabolites in them by HPLC–MS/MS, using…”
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Formation of core-shell Au@Ag nanorods induced by catecholamines: A comparative study and an analytical application by Gorbunova, M.V., Apyari, V.V., Dmitrienko, S.G., Garshev, A.V.

“…Gold nanorods (AuNRs) stabilized by cetyltrimethylammonium bromide (CTAB) were synthesized and an interaction of catecholamines (CAs) with silver ions in the…”
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Using Hypercrosslinked Polystyrene for the Multicomponent Solid-Phase Extraction of Residues of 63 Veterinary Preparations in Their Determination in Chicken Meat by High-Performance Liquid Chromatography–Tandem Mass Spectrometry by Melekhin, A. O., Tolmacheva, V. V., Shubina, E. G., Dmitrienko, S. G., Apyari, V. V., Grudev, A. I.

“…Hypercrosslinked polystyrene is proposed for the multicomponent solid-phase extraction of residues of 63 veterinary preparations from various classes…”
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Effect of amines on formation of gold/polyurethane foam nanocomposites and its sensing opportunities by Melekhin, A.O., Isachenko, A.I., Apyari, V.V., Volkov, P.A., Dmitrienko, S.G., Torocheshnikova, I.I., Zolotov, Yu.A.

“…Effect of amines on formation of gold nanoparticles (AuNPs)/polymer nanocomposites has been observed and studied. Nanocomposites based on polyurethane foam and…”
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Methods for the Extraction of Organic Compounds from Solid Samples: 1. Solvent Extraction. Review of Reviews by Dmitrienko, S. G., Apyari, V. V., Tolmacheva, V. V., Gorbunova, M. V., Furletov, A. A., Zolotov, Yu. A.

“…The first part of the review provides general information about the solvent extraction of organic compounds from solid samples and discusses various methods…”
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A New Derivatizing Agent for Determining Nitrofuran Metabolites in Chicken Eggs by High-Performance Liquid Chromatography–Tandem Mass Spectrometry by Melekhin, A. O., Tolmacheva, V. V., Shubina, E. G., Dmitrienko, S. G., Apyari, V. V., Grudev, A. I., Zolotov, Yu. A.

“…5-Nitro-2-furaldehyde is proposed as a new derivatizing agent for determining four nitrofuran metabolites: 3-amino-2-oxazolidinone,…”
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