Search Results - "Rybalchenko, I. V."
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Determination of p-Methoxyphenacyl Bromide Derivatives of Alkylmethylphosphonic Acids in Urine Using Gas Chromatography with High-Resolution Mass Spectrometric Detection
Published in Journal of analytical chemistry (New York, N.Y.) (01-12-2021)“…We developed a method for determining ethyl methylphosphonic, isopropyl methylphosphonic, isobutyl methylphosphonic, and pinacolyl methylphosphonic acids in…”
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Phosphorylation of Tyrosine and Tyr-Thr-Lys Tripeptide with Cyclohexylmethyl- and (Deuteromethyl)phosphonochloridates
Published in Russian journal of general chemistry (01-04-2020)“…Methods for phosphorylation of tyrosine and Tyr-Thr-Lys tripeptide with cyclohexylmethyl(deuteromethyl)phosphonochloridates have been developed. These products…”
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Reforming the housing and community amenities system of a metropolis using blockchain technology
Published in E-management (Moscow, Russia) (22-04-2023)“…The article discusses management techniques of reforming the management system of the housing and community amenities of the metropolis, associated with the…”
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Determination of Methylphosphonic Acid and Alkyl Methylphosphonic Acid Esters in Soils by Liquid Chromatography–High-Resolution Mass Spectrometry
Published in Inorganic materials (01-12-2023)“…A method has been optimized for simultaneous extraction of ethyl methylphosphonic acid ester (EMPA), isopropyl methylphosphonic acid ester (IPMPA), isobutyl…”
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Chromatography–Mass Spectrometry Analysis for the Determination of the Markers and Biomarkers of Chemical Warfare Agents
Published in Journal of analytical chemistry (New York, N.Y.) (2021)“…This paper considers publications devoted to the development and improvement of methods for the determination of markers and biomarkers of chemical warfare…”
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Determination of Nitrogen Mustard Metabolites in Urine Using High-Performance Liquid Chromatography–High-Resolution Mass Spectrometry
Published in Inorganic materials (01-12-2022)“…Liquid chromatography–high-resolution mass spectrometry that combines the capabilities of highly selective separation of mixtures under study, valid detection…”
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Structure and dielectric properties of thin nanocrystalline ZnFe2O4 films
Published in Ferroelectrics (12-05-2021)“…Optically transparent high-quality nanosized crystalline zinc ferrite thin films on different substrates have been synthesized by the decomposition of organic…”
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MANAGEMENT TECHNIQUES FOR REDUCING ADMINISTRATIVE BARRIERS WHEN PROVIDING STATE AND MUNICIPAL SERVICES IN THE RUSSIAN FEDERATION
Published in Вестник университета (03-02-2021)“…The subject of the study is administrative barriers in the provision of public services to individuals and business entities in the Russian Federation. The…”
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Hydrophilic interaction liquid chromatography–tandem mass spectrometry methylphosponic and alkyl methylphosphonic acids determination in environmental samples after pre-column derivatization with p-bromophenacyl bromide
Published in Journal of Chromatography A (15-04-2016)“…•Very simple sample pretreatment was developed.•Alkyl methylphosphonic acids unlike methylphosphonic acid did not react with p-bromophenacyl bromide under…”
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Methodological Approaches to the Calculation and Prediction of Retention Indices in Capillary Gas Chromatography
Published in Journal of analytical chemistry (New York, N.Y.) (01-03-2018)“…The scientific achievements in the field of calculation and prediction of gas chromatographic indices of retention of organic compounds on standard nonpolar…”
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MANAGEMENT TECHNIQUES FOR IMPROVING THE QUALITY OF DECISION-MAKING BY OWNERS OF APARTMENT BUILDINGS ON THE CHOICE OF MANAGEMENT ORGANIZATION
Published in Вестник университета (16-07-2020)“…The procedure for choosing the organization managing the apartment building is regulated in detail by legislation. However, the law, formally conforming to…”
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Identification of Adducts of O-Isopropylmethylphosphonic and O-Cyclohexylmethylphosphonic Acids with a Tripeptide (Tyr-Thr-Lys) in Human Plasma by Liquid Chromatography–Mass Spectrometry
Published in Journal of analytical chemistry (New York, N.Y.) (01-12-2020)“…We proposed a method for determining the presence of trace amounts of adducts of isopropylmethylphosphonic acid (IMPA) and cyclohexylmethylphosphonic acid…”
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p-Methoxyphenacyl Bromide as a Versatile Reagent for the Determination of Alkylphosphonic and Alkylmethylphosphonic Acids by High-Performance Liquid and Gas Chromatography with Mass Spectrometric Detection
Published in Journal of analytical chemistry (New York, N.Y.) (01-12-2020)“…A multipurpose reagent, p -methoxyphenacyl bromide, is proposed for the derivatization of polar products of the degradation (markers) of nerve agents, which…”
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Selection of Recording Conditions and Study of Fragmentation of a Peptide Biomarker of Sarin by High-Performance Liquid Chromatography–High-Resolution Mass Spectrometry
Published in Journal of analytical chemistry (New York, N.Y.) (01-12-2018)“…The identification of protein biomarkers of chemical warfare agents involves their reliable detection in the blood plasma at trace levels. This is a…”
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Detection of Ricin in Plant Extracts and Soil Using Liquid Chromatography–High-Resolution Mass Spectrometry
Published in Journal of analytical chemistry (New York, N.Y.) (01-08-2018)“…A procedure is developed for the detection of ricin in plant extracts and soil based on its hydrolysis with trypsin and chymotrypsin with the formation of…”
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Synthesis of the Tripeptides Tyr-Thr-Lys Phosphorylated with Isopropyl Methyl- and (Deuteromethyl)phosphonochloridates as Reference Standards for the Analysis of Biomedical Samples
Published in Russian journal of general chemistry (01-10-2019)“…A procedure for the phosphorylation of the tripeptide Tyr-Thr-Lys with isopropyl methyl- or (deuteromethyl)phosphonochloridate is developed. The phosphorylated…”
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Determination of the Structure of Alkyl Radicals in a Series of Highly Toxic Organophosphorus Compounds Using Mass Spectrometry Databases and Library Search
Published in Journal of analytical chemistry (New York, N.Y.) (01-12-2018)“…We propose an approach to the identification of alkyl radicals attached to the ester oxygen atom in a series of highly toxic organophosphorus compounds, based…”
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Group Identification of O-Alkyl Alkylphosphonothionofluoridates by Electron Ionization Mass Spectra Using Generalized Spectral Images of Taxonomic Groups
Published in Journal of analytical chemistry (New York, N.Y.) (01-12-2018)“…A method is proposed for the group identification of poorly studied highly toxic O -alkyl alkylphosphonothionofluoridates by electron ionization mass spectra…”
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Determination of Cyclohexylmethylfluorophosphonate Metabolites in Human Blood Plasma Using High-Resolution Liquid Chromatography–Mass Spectrometry
Published in Journal of analytical chemistry (New York, N.Y.) (01-06-2020)“…Conditions for the extraction of a phosphonylated nonapeptide, phosphonylated tyrosine, and cyclohexylmethylphosphonic acid from human blood plasma followed by…”
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