49 research outputs found

    The new approach to a pattern recognition of volatile compounds: the inflammation markers in nasal mucus swabs from calves using the gas sensor array

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    This paper discusses the application of two approaches (direct and inverse) to the identification of volatile substances by means of a gas sensor array in a headspace over nasal mucus swab samples taken from calves with differing degrees of respiratory damage. We propose a unique method to visualize sensor array data for quality analysis, based on the spectra of cross mass sensitivity parameters. The traditional method, which requires an initial sensor array trained on the vapors of the individual substances (database accumulation)-with their further identification in the analyzed bio-samples through the comparison of the analysis results to the database-has shown unsatisfactory performance. The proposed inverse approach is more informative for the pattern recognition of volatile substances in the headspace of mucus samples. The projection of the calculated parameters of the sensor array for individual substances in the principal component space, acquired while processing the sensor array output from nasal swab samples, has allowed us to divide animals into groups according to the clinical diagnosis of their lung condition (healthy respiratory system, bronchitis, or bronchopneumonia). The substances detected in the gas phase of the nasal swab samples (cyclohexanone, butanone-2,4-methyl-2-pentanone) were correlated with the clinical state of the animals, and were consistent with the reference data on disease markers in exhaled air established for destructive organism processes

    Features ofweb-publications for promotion of information services of UrFU

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    Π’ ΡΡ‚Π°Ρ‚ΡŒΠ΅ ΠΏΡ€ΠΎΠ°Π½Π°Π»ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Ρ‹ ΠΏΡƒΠ±Π»ΠΈΠΊΠ°Ρ†ΠΈΠΈ Π”ΠΈΡ€Π΅ΠΊΡ†ΠΈΠΈ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΉ Π£Ρ€Π€Π£, посвящСнныС ΠΏΡ€ΠΎΠ΄Π²ΠΈΠΆΠ΅Π½ΠΈΡŽ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… сСрвисов. ΠŸΠΎΠΊΠ°Π·Π°Π½Ρ‹ стилистичСскиС различия тСкстов, распространяСмых ΠΏΠΎ Ρ€Π°Π·Π½Ρ‹ΠΌ ΠΊΠ°Π½Π°Π»Π°ΠΌ ΠΈ рассчитанных Π½Π° Ρ€Π°Π·Π½ΡƒΡŽ Ρ†Π΅Π»Π΅Π²ΡƒΡŽ Π°ΡƒΠ΄ΠΈΡ‚ΠΎΡ€ΠΈΡŽ.Thearticle analyzes the publications of the Directorate of information technology, Ural Federal University, dedicated to advancing information services. The article shows the stylistic differences of the texts that are distributed through different channels and for different target audience

    Π˜ΠΠ€ΠžΠ ΠœΠΠ’Π˜Π’ΠΠžΠ‘Π’Π¬ Π’Π«Π₯ΠžΠ”ΠΠ«Π₯ Π‘Π˜Π“ΠΠΠ›ΠžΠ’ Β«Π­Π›Π•ΠšΠ’Π ΠžΠΠΠžΠ“Πž НОБА» НА ΠŸΠ¬Π•Π—ΠžΠ‘Π•ΠΠ‘ΠžΠ ΠΠ₯

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    The purpose of this research was assessing the influence of the various factors on the output signals of the static "electronic nose" based on the piezoelectric sensors, and determining the informative nature of these signals for the identification and determination of the marker-substances related to the pathogenic processes in the equilibrium gas phase over the aqueous solutions. Individual substances contained in bio samples in the presence of pathogenic and neoplastic processes, such as ammonia, amines, carboxylic acids, ethanol, 1-butanol, acetone, ethyl acetate, phenol, hydrogen sulfide and water were selected as the marker-substances. The selective coating of sensors was chosen based on the results of the numerous studies for the living systems of different nature in order to determine the deviations from the norm, which included standard chromatographic phases and specific sorbents (indicators, crown ethers). It was shown that the analytical information of the electronic nose based on the piezoelectric sensors no more dependent on the experimental conditions than other popular, widely used methods of analysis. The informative value of the sensors array’ output signals which were used to identify the substances was described. The array set of piezoelectric sensors identification parameters was established in order to detect amines, organic acids, alcohols, ethyl acetate, acetone in the equilibrium gas phase over the aqueous solutions. The influence of the sensors order in the array on the values of three-element identification parameters has been demonstrated. The scheme of the identification parameters application, including nonselective ones, has been proposed for detecting the organic substances coincidentally at least two parameters. The possibility of an application of these parameters to identify amines, acids, alcohols, ketones in the equilibrium gas phase over the aqueous solutions of mixtures from these substances has been proven. This approach was characterized by high sensitivity and specificity, and may be used for the identification of substances in equilibrium gas phase over the samples with high water content (blood, urine, lymph, perspiration, juices, beverages).Key words: piezoelectric sensors, electronic nose, analytical signals, marker-substances, identification parameters, informativenessDOI: http://dx.doi.org/10.15826/analitika.2017.21.2.001T.A. Kuchmenko and A.A. Shuba*Β Voronezh State University of Engineering Technologies, faculty of ecology and chemical technology, Revolution Avenue, 19, Voronezh, 394036, Russian FederationΒ ΠžΠ±ΡΡƒΠΆΠ΄Π°Π΅Ρ‚ΡΡ влияниС Ρ‚Π΅ΠΌΠΏΠ΅Ρ€Π°Ρ‚ΡƒΡ€Ρ‹, влаТности, Ρ€Π΅ΠΆΠΈΠΌΠΎΠ² измСрСния, собствСнных характСристик ΠΏΡŒΠ΅Π·ΠΎΡ€Π΅Π·ΠΎΠ½Π°Ρ‚ΠΎΡ€ΠΎΠ², ΠΏΡ€ΠΈΡ€ΠΎΠ΄Ρ‹ ΠΈ массы сорбСнта, ΠΏΡ€ΠΈΡ€ΠΎΠ΄Ρ‹ ΠΈ содСрТания Π°Π½Π°Π»ΠΈΡ‚Π°, Ρ‚ΠΈΠΏΠ° ΠΏΡ€ΠΎΠ± Π½Π° Π²Ρ‹Ρ…ΠΎΠ΄Π½Ρ‹Π΅ Π΄Π°Π½Π½Ρ‹Π΅ массива ΠΏΡŒΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡ€ΠΎΠ², Π² Ρ‚ΠΎΠΌ числС Π½Π° ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Ρ‹, ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅ΠΌΡ‹Π΅ для ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ вСщСств Π² смСсях, ΠΈ ΠΏΡƒΡ‚ΠΈ устранСния ΠΈΠ»ΠΈ ΠΌΠΈΠ½ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ этого влияния. Показано, Ρ‡Ρ‚ΠΎ аналитичСская информация «элСктронного носа» Π½Π° ΠΏΡŒΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡ€Π°Ρ… Π½Π΅ Π±ΠΎΠ»Π΅Π΅ зависима ΠΎΡ‚ условий экспСримСнта, Ρ‡Π΅ΠΌ популярныС, ΡˆΠΈΡ€ΠΎΠΊΠΎ распространСнныС ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ Π°Π½Π°Π»ΠΈΠ·Π°. Описана ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ Π²Ρ‹Ρ…ΠΎΠ΄Π½Ρ‹Ρ… сигналов массива сСнсоров, ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅ΠΌΡ‹Ρ… для ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ вСщСств. УстановлСны ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Π΅ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Ρ‹ массива ΠΏΡŒΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡ€ΠΎΠ² для обнаруТСния Π°ΠΌΠΈΠ½ΠΎΠ², органичСских кислот, спиртов, этилацСтата, Π°Ρ†Π΅Ρ‚ΠΎΠ½Π° Π² равновСсной Π³Π°Π·ΠΎΠ²ΠΎΠΉ Ρ„Π°Π·Π΅ Π½Π°Π΄ Π²ΠΎΠ΄Π½Ρ‹ΠΌΠΈ растворами. ΠŸΡ€ΠΎΠ΄Π΅ΠΌΠΎΠ½ΡΡ‚Ρ€ΠΈΡ€ΠΎΠ²Π°Π½ΠΎ влияниС порядка располоТСния сСнсоров Π² массивС Π½Π° значСния трСхэлСмСнтных ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ². ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π° схСма примСнСния ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ², Π² Ρ‚ΠΎΠΌ числС нСсСлСктивных, для обнаруТСния органичСских вСщСств ΠΏΠΎ совпадСнию Π½Π΅ ΠΌΠ΅Π½Π΅Π΅ Π΄Π²ΡƒΡ… ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ². Π”ΠΎΠΊΠ°Π·Π°Π½Π° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ примСнСния Π΄Π°Π½Π½Ρ‹Ρ… ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² для ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ Π°ΠΌΠΈΠ½ΠΎΠ², кислот, спиртов, ΠΊΠ΅Ρ‚ΠΎΠ½ΠΎΠ² Π² равновСсной Π³Π°Π·ΠΎΠ²ΠΎΠΉ Ρ„Π°Π·Π΅ Π½Π°Π΄ Π²ΠΎΠ΄Π½Ρ‹ΠΌΠΈ растворами ΠΈΡ… смСсСй. Π”Π°Π½Π½Ρ‹ΠΉ ΠΏΠΎΠ΄Ρ…ΠΎΠ΄ характСризуСтся высокой Ρ‡ΡƒΠ²ΡΡ‚Π²ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΡŒΡŽ ΠΈ ΡΠΏΠ΅Ρ†ΠΈΡ„ΠΈΡ‡Π½ΠΎΡΡ‚ΡŒΡŽ ΠΈ ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ использован для ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ вСщСств Π² равновСсной Π³Π°Π·ΠΎΠ²ΠΎΠΉ Ρ„Π°Π·Π΅ Π½Π°Π΄ ΠΏΡ€ΠΎΠ±Π°ΠΌΠΈ с большим содСрТаниСм Π²ΠΎΠ΄Ρ‹ (ΠΊΡ€ΠΎΠ²ΡŒ,Β  ΠΌΠΎΡ‡Π°, Π»ΠΈΠΌΡ„Π°, ΠΏΠΎΡ‚, соки, Π½Π°ΠΏΠΈΡ‚ΠΊΠΈ).ΠšΠ»ΡŽΡ‡Π΅Π²Ρ‹Π΅ слова: ΠΏΡŒΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡ€Ρ‹, элСктронный нос, вСщСства-ΠΌΠ°Ρ€ΠΊΠ΅Ρ€Ρ‹, аналитичСский сигнал, ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Π΅ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Ρ‹, ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ.DOI: http://dx.doi.org/10.15826/analitika.2017.21.2.001

    ΠšΠ²Π°Π½Ρ‚ΠΎΠ²Ρ‹Π΅ Ρ‚ΠΎΡ‡ΠΊΠΈ: ΠΎΠΏΡ‹Ρ‚ ΠΈ пСрспСктивы примСнСния Π² аналитичСских систСмах

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    The article is of a review nature, in which the dynamics of publication activity is analyzed and the possibilities of using quantum dots to solve various analytical problems are evaluated. The attention is paid to both traditional and relatively rare areas of analytical application of these nanostructures. A brief review of the types, advantages and disadvantages of synthesis methods, the influence of external factors on the band gap and luminescence intensity of inorganic nanosized phosphors, quantum dots of different nature, is presented. The areas of application and the main tasks solved with the use of quantum dots are systematized. Their analytical characteristics, operational properties and ways of regulating them are discussed. An effective way to control the analytical properties of the systems based on quantum dots is a directional change of the affinity for components by varying the nature of the stabilizing or modifying shell. Semiconductor colloidal quantum dots coated with a larger bandgap shell were selected for analytical use as the most commonly used systems due to their good photostability and fluorescence quantum yield. The advantages and disadvantages of other types of shells, as well as ways of modifying them, are shown. Solutions for organic analysis and medical diagnostics are considered. Systems of quantum dots used as biosensors with various guiding agents are considered, and their properties, advantages and disadvantages compared. Little studied issues and solutions in the direction of using quantum dots for developing sensor systems and their use for non-invasive analysis of living systems based on the results of detection of volatile organic compounds are identified.Keywords: quantum dots, application, analysis, reviewΠ‘Ρ‚Π°Ρ‚ΡŒΡ носит ΠΎΠ±Π·ΠΎΡ€Π½Ρ‹ΠΉ Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€, Π² Π½Π΅ΠΉ анализируСтся Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ° ΠΏΡƒΠ±Π»ΠΈΠΊΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠΉ активности, ΠΎΡ†Π΅Π½ΠΈΠ²Π°ΡŽΡ‚ΡΡ возмоТности примСнСния ΠΊΠ²Π°Π½Ρ‚ΠΎΠ²Ρ‹Ρ… Ρ‚ΠΎΡ‡Π΅ΠΊ для Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… аналитичСских Π·Π°Π΄Π°Ρ‡. ΠŸΡ€ΠΈ этом Π²Π½ΠΈΠΌΠ°Π½ΠΈΠ΅ удСляСтся ΠΊΠ°ΠΊ Ρ‚Ρ€Π°Π΄ΠΈΡ†ΠΈΠΎΠ½Π½Ρ‹ΠΌ, Ρ‚Π°ΠΊ ΠΈ ΡΡ€Π°Π²Π½ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ Ρ€Π΅Π΄ΠΊΠΈΠΌ направлСниям аналитичСского примСнСния этих наноструктур. ΠŸΡ€Π΅Π΄ΡΡ‚Π°Π²Π»Π΅Π½ ΠΊΡ€Π°Ρ‚ΠΊΠΈΠΉ ΠΎΠ±Π·ΠΎΡ€ Ρ‚ΠΈΠΏΠΎΠ², достоинств ΠΈ нСдостатков способов синтСза, влияния Π²Π½Π΅ΡˆΠ½ΠΈΡ… Ρ„Π°ΠΊΡ‚ΠΎΡ€ΠΎΠ² Π½Π° ΡˆΠΈΡ€ΠΈΠ½Ρƒ Π·Π°ΠΏΡ€Π΅Ρ‰Π΅Π½Π½ΠΎΠΉ Π·ΠΎΠ½Ρ‹ ΠΈ ΠΈΠ½Ρ‚Π΅Π½ΡΠΈΠ²Π½ΠΎΡΡ‚ΡŒ Π»ΡŽΠΌΠΈΠ½Π΅ΡΡ†Π΅Π½Ρ†ΠΈΠΈ нСорганичСских Π½Π°Π½ΠΎΡ€Π°Π·ΠΌΠ΅Ρ€Π½Ρ‹Ρ… Π»ΡŽΠΌΠΈΠ½ΠΎΡ„ΠΎΡ€ΠΎΠ² - ΠΊΠ²Π°Π½Ρ‚ΠΎΠ²Ρ‹Ρ… Ρ‚ΠΎΡ‡Π΅ΠΊ Ρ€Π°Π·Π½ΠΎΠΉ ΠΏΡ€ΠΈΡ€ΠΎΠ΄Ρ‹. БистСматизированы области примСнСния ΠΈ основныС Π·Π°Π΄Π°Ρ‡ΠΈ, Ρ€Π΅ΡˆΠ°Π΅ΠΌΡ‹Π΅ с ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ ΠΊΠ²Π°Π½Ρ‚ΠΎΠ²Ρ‹Ρ… Ρ‚ΠΎΡ‡Π΅ΠΊ. ΠžΠ±ΡΡƒΠΆΠ΄Π°ΡŽΡ‚ΡΡ ΠΈΡ… аналитичСскиС характСристики, эксплуатационныС свойства ΠΈ способы управлСния ΠΈΠΌΠΈ. Показано, Ρ‡Ρ‚ΠΎ эффСктивным способом управлСния аналитичСскими свойствами систСм Π½Π° основС ΠΊΠ²Π°Π½Ρ‚ΠΎΠ²Ρ‹Ρ… Ρ‚ΠΎΡ‡Π΅ΠΊ являСтся Π½Π°ΠΏΡ€Π°Π²Π»Π΅Π½Π½ΠΎΠ΅ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ сродства ΠΊ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚Π°ΠΌ Π·Π° счСт Π²Π°Ρ€ΡŒΠΈΡ€ΠΎΠ²Π°Π½ΠΈΡ ΠΏΡ€ΠΈΡ€ΠΎΠ΄Ρ‹ ΡΡ‚Π°Π±ΠΈΠ»ΠΈΠ·ΠΈΡ€ΡƒΡŽΡ‰Π΅ΠΉ ΠΈΠ»ΠΈ ΠΌΠΎΠ΄ΠΈΡ„ΠΈΡ†ΠΈΡ€ΡƒΡŽΡ‰Π΅ΠΉ ΠΎΠ±ΠΎΠ»ΠΎΡ‡ΠΊΠΈ. Для использования Π² аналитичСских цСлях Π²Ρ‹Π΄Π΅Π»Π΅Π½Ρ‹ ΠΏΠΎΠ»ΡƒΠΏΡ€ΠΎΠ²ΠΎΠ΄Π½ΠΈΠΊΠΎΠ²Ρ‹Π΅ ΠΊΠΎΠ»Π»ΠΎΠΈΠ΄Π½Ρ‹Π΅ ΠΊΠ²Π°Π½Ρ‚ΠΎΠ²Ρ‹Π΅ Ρ‚ΠΎΡ‡ΠΊΠΈ, ΠΏΠΎΠΊΡ€Ρ‹Ρ‚Ρ‹Π΅ ΠΎΠ±ΠΎΠ»ΠΎΡ‡ΠΊΠΎΠΉ с большСй ΡˆΠΈΡ€ΠΈΠ½ΠΎΠΉ Π·Π°ΠΏΡ€Π΅Ρ‰Π΅Π½Π½ΠΎΠΉ Π·ΠΎΠ½Ρ‹, ΠΊΠ°ΠΊ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ часто ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅ΠΌΡ‹Π΅ систСмы, благодаря ΠΈΡ… Ρ…ΠΎΡ€ΠΎΡˆΠΈΠΌ Ρ„ΠΎΡ‚ΠΎΡΡ‚Π°Π±ΠΈΠ»ΡŒΠ½ΠΎΡΡ‚ΠΈ ΠΈ ΠΊΠ²Π°Π½Ρ‚ΠΎΠ²ΠΎΠΌΡƒ Π²Ρ‹Ρ…ΠΎΠ΄Ρƒ флуорСсцСнции. ΠŸΠΎΠΊΠ°Π·Π°Π½Ρ‹ прСимущСства ΠΈ нСдостатки Π΄Ρ€ΡƒΠ³ΠΈΡ… Ρ‚ΠΈΠΏΠΎΠ² ΠΎΠ±ΠΎΠ»ΠΎΡ‡Π΅ΠΊ, Π° Ρ‚Π°ΠΊΠΆΠ΅ способы ΠΈΡ… ΠΌΠΎΠ΄ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ. РассмотрСны Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ для органичСского Π°Π½Π°Π»ΠΈΠ·Π° ΠΈ мСдицинской диагностики. РассмотрСны систСмы ΠΊΠ²Π°Π½Ρ‚ΠΎΠ²Ρ‹Ρ… Ρ‚ΠΎΡ‡Π΅ΠΊ, примСняСмыС Π² качСствС биосСнсоров, с Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹ΠΌΠΈ Π½Π°ΠΏΡ€Π°Π²Π»ΡΡŽΡ‰ΠΈΠΌΠΈ Π°Π³Π΅Π½Ρ‚Π°ΠΌΠΈ, сопоставлСны ΠΈΡ… свойства, достоинства ΠΈ нСдостатки. ΠžΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½Ρ‹ ΠΌΠ°Π»ΠΎ ΠΏΡ€ΠΎΡ€Π°Π±ΠΎΡ‚Π°Π½Π½Ρ‹Π΅ вопросы ΠΈ Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ Π² Π½Π°ΠΏΡ€Π°Π²Π»Π΅Π½ΠΈΠΈ примСнСния ΠΊΠ²Π°Π½Ρ‚ΠΎΠ²Ρ‹Ρ… Ρ‚ΠΎΡ‡Π΅ΠΊ для Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ сСнсорных систСм, использования ΠΈΡ… для Π½Π΅ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° ΠΆΠΈΠ²Ρ‹Ρ… систСм ΠΏΠΎ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π°ΠΌ дСтСктирования Π»Π΅Π³ΠΊΠΎ Π»Π΅Ρ‚ΡƒΡ‡ΠΈΡ… органичСских соСдинСний.ΠšΠ»ΡŽΡ‡Π΅Π²Ρ‹Π΅ слова: ΠΊΠ²Π°Π½Ρ‚ΠΎΠ²Ρ‹Π΅ Ρ‚ΠΎΡ‡ΠΊΠΈ, ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅, Π°Π½Π°Π»ΠΈΠ·, ΠΎΠ±Π·ΠΎ

    Π­ΠšΠ‘ΠŸΠ Π•Π‘Π‘ΠΠ«Π™ Π‘ΠŸΠžΠ‘ΠžΠ‘ ΠΠΠΠ›Π˜Π—Π ΠšΠ Π•ΠŸΠšΠ˜Π₯ БПИРВНЫΠ₯ ΠΠΠŸΠ˜Π’ΠšΠžΠ’ ΠœΠΠ‘Π‘Π˜Π’ΠžΠœ ΠŸΠ¬Π•Π—ΠžΠ‘Π•ΠΠ‘ΠžΠ ΠžΠ’ Β«Π­Π›Π•ΠšΠ’Π ΠžΠΠΠ«Π™ НОБ»

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    A new way of express analysis of alcohol-containing liquids with the possibility of identification of fusel oil set components using chemical gas sensors has been developed. The sorption of the volatile organic components of the basic alcohol-containing liquids’ volatile fraction has been studied. The optimum set of piezosensors was chosen, and most importantly, it was adapted to the basic test substances (propanone, 1-propanol, 2-propanol, 1-butanol, 2-butanol, ethanol, butanone, acetaldehyde, ethyl acetate, butyl acetate, water). The possibility of applying an express method of piezoelectric quartz crystal micro-weighing for the identification of gross falsification of alcohol-containing beverages with the high ethanol content was positively evaluated. Several methodical approaches were offered to identify the individual vapor components in the mixture of fusel oils. The sample analysis of the alcohol-containing liquids was done simultaneously by the method of gas chromatography. The correlation between the area of the β€œvisual print” signals, the optimized composition of chemical sensors and the parameters of gas chromatography was established. The newly developed method significantly reduces the time and the economic costs allowing you to quickly identify volatile organic substances in alcoholic beverages, and it is also helpful and suitable for the routine analysis.Keywords: the component of fusel oil, alcohol-containing liquids, quality, electronic nose, chemical sensorsDOI: http://dx.doi.org/10.15826/analitika.2017.21.3.003Β T.A. Kuchmenko, E.V. Bodrenko, E.P. AnokhinaVoronezh state university of engineering technologies, pr. Revoliutsii, 19, Voronezh, 394036, Russian FederationΠ Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½ экспрСссный способ Π°Π½Π°Π»ΠΈΠ·Π° спиртосодСрТащих ТидкостСй Π½Π°Π±ΠΎΡ€ΠΎΠΌ химичСских Π³Π°Π·ΠΎΠ²Ρ‹Ρ… сСнсоров с установлСниСм ΠΏΡ€ΠΎΠ± Π½ΠΈΠ·ΠΊΠΎΠ³ΠΎ качСства, Ρ„Π°Π»ΡŒΡΠΈΡ„ΠΈΠΊΠ°Ρ‚ΠΎΠ² ΠΈ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒΡŽ ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚ΠΎΠ² ΡΠΈΠ²ΡƒΡˆΠ½ΠΎΠ³ΠΎ масла Π±Π΅Π· раздСлСния. Π˜Π·ΡƒΡ‡Π΅Π½Π° сорбция Π»Π΅Π³ΠΊΠΎΠ»Π΅Ρ‚ΡƒΡ‡ΠΈΡ… органичСских ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚ΠΎΠ², входящих Π²Β  ΠΎΡΠ½ΠΎΠ²Π½ΡƒΡŽ Π»Π΅Π³ΠΊΠΎΠ»Π΅Ρ‚ΡƒΡ‡ΡƒΡŽ Ρ„Ρ€Π°ΠΊΡ†ΠΈΡŽ спиртосодСрТащих ТидкостСй. Π’Ρ‹Π±Ρ€Π°Π½ ΠΎΠΏΡ‚ΠΈΠΌΠ°Π»ΡŒΠ½Ρ‹ΠΉ Π½Π°Π±ΠΎΡ€ ΠΏΡŒΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡ€ΠΎΠ², ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ Π°Π΄Π°ΠΏΡ‚ΠΈΡ€ΠΎΠ²Π°Π½ ΠΊ основным тСст-вСщСствам (ΠΏΡ€ΠΎΠΏΠ°Π½ΠΎΠ½, ΠΏΡ€ΠΎΠΏΠ°Π½ΠΎΠ»-1, ΠΏΡ€ΠΎΠΏΠ°Π½ΠΎΠ»-2, Π±ΡƒΡ‚Π°Π½ΠΎΠ»-1, Π±ΡƒΡ‚Π°Π½ΠΎΠ»-2, этанол, Π±ΡƒΡ‚Π°Π½ΠΎΠ½, Π°Ρ†Π΅Ρ‚Π°Π»ΡŒΠ΄Π΅Π³ΠΈΠ΄, этилацСтат, Π±ΡƒΡ‚ΠΈΠ»Π°Ρ†Π΅Ρ‚Π°Ρ‚, Π²ΠΎΠ΄Π°). ΠŸΠΎΠ»ΠΎΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ ΠΎΡ†Π΅Π½Π΅Π½Π° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ примСнСния экспрСссного способа ΠΏΡŒΠ΅Π·ΠΎΠΊΠ²Π°Ρ€Ρ†Π΅Π²ΠΎΠ³ΠΎ ΠΌΠΈΠΊΡ€ΠΎΠ²Π·Π²Π΅ΡˆΠΈΠ²Π°Π½ΠΈΡ для выявлСния Π³Ρ€ΡƒΠ±Ρ‹Ρ… Ρ„Π°Π»ΡŒΡΠΈΡ„ΠΈΠΊΠ°Ρ‚ΠΎΠ² спиртосодСрТащих Π½Π°ΠΏΠΈΡ‚ΠΊΠΎΠ² с высоким содСрТаниСм этанола. ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Ρ‹ мСтодичСскиС ΠΏΠΎΠ΄Ρ…ΠΎΠ΄Ρ‹ для ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ Π² смСси ΠΏΠ°Ρ€ΠΎΠ² ΠΎΡ‚Π΄Π΅Π»ΡŒΠ½Ρ‹Ρ… ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚ΠΎΠ² ΡΠΈΠ²ΡƒΡˆΠ½ΠΎΠ³ΠΎ масла. УстановлСна коррСляция ΠΌΠ΅ΠΆΠ΄Ρƒ ΠΏΠ»ΠΎΡ‰Π°Π΄ΡŒΡŽ Β«Π²ΠΈΠ·ΡƒΠ°Π»ΡŒΠ½ΠΎΠ³ΠΎ ΠΎΡ‚ΠΏΠ΅Ρ‡Π°Ρ‚ΠΊΠ°Β» сигналов химичСских сСнсоров ΠΈ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Π°ΠΌΠΈ Π³Π°Π·ΠΎΠ²ΠΎΠΉ Ρ…Ρ€ΠΎΠΌΠ°Ρ‚ΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ. Π Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½Π½Ρ‹ΠΉ способ сущСствСнно ΡƒΠΌΠ΅Π½ΡŒΡˆΠ°Π΅Ρ‚ Π²Ρ€Π΅ΠΌΠ΅Π½Π½Ρ‹Π΅ ΠΈ экономичСскиС Π·Π°Ρ‚Ρ€Π°Ρ‚Ρ‹ Ρ€ΡƒΡ‚ΠΈΠ½Π½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π°, позволяСт Π² ΠΊΠΎΡ€ΠΎΡ‚ΠΊΠΈΠ΅ сроки Π²Ρ‹ΡΠ²ΠΈΡ‚ΡŒ Ρ„Π°Π»ΡŒΡΠΈΡ„ΠΈΠΊΠ°Ρ‚Ρ‹ ΠΈ ΠΏΡ€ΠΎΠ±Ρ‹, Π½Π΅ ΡΠΎΠΎΡ‚Π²Π΅Ρ‚ΡΡ‚Π²ΡƒΡŽΡ‰ΠΈΠ΅ Π½ΠΎΡ€ΠΌΠ°ΠΌ, ΠΎΠΏΡ€Π΅Π΄Π΅Π»ΠΈΡ‚ΡŒ Π»Π΅Π³ΠΊΠΎΠ»Π΅Ρ‚ΡƒΡ‡ΠΈΠ΅ органичСскиС вСщСства ΡΠΈΠ²ΡƒΡˆΠ½ΠΎΠ³ΠΎ масла Π² Π°Π»ΠΊΠΎΠ³ΠΎΠ»ΡŒΠ½Ρ‹Ρ… Π½Π°ΠΏΠΈΡ‚ΠΊΠ°Ρ… Π±Π΅Π· раздСлСния ΠΈ ΠΈΠ½ΠΎΠΉ ΠΏΡ€ΠΎΠ±ΠΎΠΏΠΎΠ΄Π³ΠΎΡ‚ΠΎΠ²ΠΊΠΈ.ΠšΠ»ΡŽΡ‡Π΅Π²Ρ‹Π΅ слова: ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚Ρ‹ ΡΠΈΠ²ΡƒΡˆΠ½ΠΎΠ³ΠΎ масла,Β  спиртосодСрТащиС Тидкости, качСство, элСктронный нос, химичСскиС сСнсорыDOI: http://dx.doi.org/10.15826/analitika.2017.21.3.00

    ΠžΠ¦Π•ΠΠšΠ ΠšΠžΠ Π Π•Π›Π―Π¦Π˜Π˜ Π‘Π˜Π“ΠΠΠ›ΠžΠ’ Β«Π­Π›Π•ΠšΠ’Π ΠžΠΠΠžΠ“Πž НОБА» Π”Π›Π― ΠΠžΠ‘ΠžΠ’ΠžΠ™ Π‘Π›Π˜Π—Π˜ И ΠšΠžΠΠ”Π•ΠΠ‘ΠΠ’Π Π’Π«Π”Π«Π₯ΠΠ•ΠœΠžΠ“Πž Π’ΠžΠ—Π”Π£Π₯А Π’Π•Π›Π―Π’ Π‘ ΠšΠ›Π˜ΠΠ˜Π§Π•Π‘ΠšΠ˜ΠœΠ˜ И Π›ΠΠ‘ΠžΠ ΠΠ’ΠžΠ ΠΠ«ΠœΠ˜ ΠŸΠžΠšΠΠ—ΠΠ’Π•Π›Π―ΠœΠ˜

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    In this article the β€œelectronic nose” system (SNT LLC, Russia) with an array of 8 differently selective piezoelectric sensors (nanobio array) was used to assess the health and functioning of the respiratory organs in young cattle by the fraction of volatile compounds over bioassays (exhaled breath condensate and nasal mucus). The sorption of the volatile fraction of substances vapors from the two types of bioassays was studied for 80s with the frontal effortless injection of vapors into the near-sensor space of the detection cell of the β€œelectronic nose” at 20 Β± 1 ΒΊC with the subsequent fixation of the spontaneous desorption for 120s - total measurement time 200s . The simplest analytical signals of the "electronic nose" (SS ΠΈ Sneg) recorded and calculated in the software for the samples were proposed suitable for assessing the health of the respiratory organs in calves. A significant correlation was found between the analytical signals of the β€œelectronic nose” and the established informative indicators of bovine respiratory diseases: increased activity of aspartate aminotransferase, alanine aminotransferase, creatinine in samples of exhaled breath condensate, respiratory failure index, and leukocyte count. The samples of nasal mucus were better used for the health assessment of the respiratory system using the nanobio array of sensors. Despite the initial small number of samples, the approach is universal and could be extended to the studies of other animals.Β Β Β Β Β Β Β Β Β Β  Key words: piezosensors, β€œelectronic nose”, correlation coefficient, nasal mucus, exhaled breath condensate, diagnosis, bovine respiratory disease, markers of inflammation(Russian)Β DOI: http://dx.doi.org/10.15826/analitika.2019.23.4.014T.A. Kuchmenko, A.A. Shuba1, R.U. Umarkhanov1, A.E. Chernitskii21Voronezh State University of Engineering Technologies”, pr. Revolutsii, 19, Voronezh, 394000, Russian Federation2All-Russian Scientific Research Veterinary Institute of Pathology, Pharmacology and Therapy, Research Center of Clinical Pharmacology and Therapy, Quality and Safety of Raw Materials and Products, st. Lomonosova, 114b, Voronezh, Russian FederationΠžΠ±ΡΡƒΠΆΠ΄Π°Π΅Ρ‚ΡΡ взаимосвязь ΠΏΠ΅Ρ€Π²ΠΈΡ‡Π½Ρ‹Ρ… Π²Ρ‹Ρ…ΠΎΠ΄Π½Ρ‹Ρ… Π΄Π°Π½Π½Ρ‹Ρ… массива сСнсоров (ΠΏΠ»ΠΎΡ‰Π°Π΄ΠΈ ΠΌΠ½ΠΎΠ³ΠΎΠΌΠ΅Ρ€Π½Ρ‹Ρ… аналитичСских сигналов сСнсоров – Β«Π²ΠΈΠ·ΡƒΠ°Π»ΡŒΠ½Ρ‹Ρ… ΠΎΡ‚ΠΏΠ΅Ρ‡Π°Ρ‚ΠΊΠΎΠ²Β») Π² ΠΏΠ°Ρ€Π°Ρ… Π±ΠΈΠΎΠΏΡ€ΠΎΠ± тСлят (носовая слизь, кондСнсат Π²Ρ‹Π΄Ρ‹Ρ…Π°Π΅ΠΌΠΎΠ³ΠΎ Π²ΠΎΠ·Π΄ΡƒΡ…Π°) с клиничСскими ΠΈ Π»Π°Π±ΠΎΡ€Π°Ρ‚ΠΎΡ€Π½Ρ‹ΠΌΠΈ показатСлями, связанными с воспалСниСм ΠΈΠ»ΠΈ Π½Π°Π»ΠΈΡ‡ΠΈΠ΅ΠΌ Π²ΠΎΠ·Π±ΡƒΠ΄ΠΈΡ‚Π΅Π»Π΅ΠΉ ΠΈΠ½Ρ„Π΅ΠΊΡ†ΠΈΠΉ, ΡΠΎΠΏΡ€ΠΎΠ²ΠΎΠΆΠ΄Π°ΡŽΡ‰ΠΈΠΌ ΠΏΠΎΡ€Π°ΠΆΠ΅Π½ΠΈΠ΅ ΠΎΡ€Π³Π°Π½ΠΎΠ² дыхания ΠΆΠΈΠ²ΠΎΡ‚Π½Ρ‹Ρ…. УстановлСно, Ρ‡Ρ‚ΠΎ ΠΌΠ½ΠΎΠ³ΠΎΠΌΠ΅Ρ€Π½Ρ‹Π΅ аналитичСскиС сигналы массива сСнсоров для Ρ€Π°Π·Π½Ρ‹Ρ… Π²ΠΈΠ΄ΠΎΠ² Π±ΠΈΠΎΠΏΡ€ΠΎΠ± Π½Π΅ ΠΊΠΎΡ€Ρ€Π΅Π»ΠΈΡ€ΡƒΡŽΡ‚ ΠΌΠ΅ΠΆΠ΄Ρƒ собой, Π½ΠΎ ΠΏΠΎ ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»ΡŽ Π΄ΠΎΠ»ΠΈ Ρ‚Ρ€ΡƒΠ΄Π½ΠΎ Π΄Π΅ΡΠΎΡ€Π±ΠΈΡ€ΡƒΡŽΡ‰ΠΈΡ…ΡΡ вСщСств (кислоты, Ρ€Π°Π·Π²Π΅Ρ‚Π²Π»Π΅Π½Π½Ρ‹Π΅ алифатичСскиС, цикличСскиС Π°ΠΌΠΈΠ½Ρ‹) Π² ΠΎΠ±Ρ‰Π΅ΠΉ смСси Π»Π΅Π³ΠΊΠΎΠ»Π΅Ρ‚ΡƒΡ‡ΠΈΡ… соСдинСний ΠΏΠΎΠ»ΠΎΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ ΠΎΡ†Π΅Π½Π΅Π½Π° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ Π·Π°ΠΌΠ΅Π½Ρ‹ ΠΏΡ€ΠΎΠ± кондСнсата Π²Ρ‹Π΄Ρ‹Ρ…Π°Π΅ΠΌΠΎΠ³ΠΎ Π²ΠΎΠ·Π΄ΡƒΡ…Π° Π½Π° ΠΏΡ€ΠΎΠ±Ρ‹ носовой слизи, которая отбираСтся быстро ΠΈ ΠΌΠ΅Π½Π΅Π΅ Ρ‚Ρ€Π°Π²ΠΌΠ°Ρ‚ΠΈΡ‡Π½ΠΎ, для ΠΌΠΎΠ½ΠΈΡ‚ΠΎΡ€ΠΈΠ½Π³Π° состояния Π·Π΄ΠΎΡ€ΠΎΠ²ΡŒΡ Π²Π΅Ρ€Ρ…Π½ΠΈΡ… Π΄Ρ‹Ρ…Π°Ρ‚Π΅Π»ΡŒΠ½Ρ‹Ρ… ΠΏΡƒΡ‚Π΅ΠΉ молодняка ΠΊΡ€ΡƒΠΏΠ½ΠΎΠ³ΠΎ Ρ€ΠΎΠ³Π°Ρ‚ΠΎΠ³ΠΎ скота. УстановлСна статистичСски значимая коррСляция ΠΌΠ΅ΠΆΠ΄Ρƒ ΠΎΡ‚ΠΊΠ»ΠΈΠΊΠ°ΠΌΠΈ массива сСнсоров для ΠΏΡ€ΠΎΠ± носовой слизи ΠΈ биохимичСскими показатСлями поврСТдСния ΠΊΠ»Π΅Ρ‚ΠΎΠΊ рСспираторного Ρ‚Ρ€Π°ΠΊΡ‚Π° Π² кондСнсатС Π²Ρ‹Π΄Ρ‹Ρ…Π°Π΅ΠΌΠΎΠ³ΠΎ Π²ΠΎΠ·Π΄ΡƒΡ…Π° (Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ аспартатаминотрансфСразы, аланинаминотрансфСразы ΠΈ концСнтрация ΠΊΡ€Π΅Π°Ρ‚ΠΈΠ½ΠΈΠ½Π°), индСксом Π΄Ρ‹Ρ…Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ нСдостаточности, содСрТаниСм Π»Π΅ΠΉΠΊΠΎΡ†ΠΈΡ‚ΠΎΠ² Π² ΠΊΡ€ΠΎΠ²ΠΈ. ΠžΡ‚ΠΊΠ»ΠΈΠΊΠΈ сСнсоров для ΠΏΡ€ΠΎΠ± носовой слизи ΡΠ²Π»ΡΡŽΡ‚ΡΡ Π±ΠΎΠ»Π΅Π΅ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ‚ΠΈΠ²Π½Ρ‹ΠΌΠΈ для Ρ€Π°Π½Π½Π΅ΠΉ диагностики рСспираторных Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ Ρƒ тСлят.ΠšΠ»ΡŽΡ‡Π΅Π²Ρ‹Π΅ слова: ΠΏΡŒΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡ€Ρ‹, «элСктронный нос», коэффициСнт коррСляции, носовая слизь, кондСнсат Π²Ρ‹Π΄Ρ‹Ρ…Π°Π΅ΠΌΠΎΠ³ΠΎ Π²ΠΎΠ·Π΄ΡƒΡ…Π°, диагностика, рСспираторныС заболСвания тСлят, ΠΌΠ°Ρ€ΠΊΠ΅Ρ€Ρ‹ воспалСнияDOI: http://dx.doi.org/10.15826/analitika.2019.23.4.01

    Informative nature of the electronic nose output signals based on the piezoelectric sensors

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    The purpose of this research was assessing the influence of the various factors on the output signals of the static β€œelectronic nose” based on the piezoelectric sensors, and determining the informative nature of these signals for the identification and determination of the marker-substances related to the pathogenic processes in the equilibrium gas phase over the aqueous solutions. Individual substances contained in bio samples in the presence of pathogenic and neoplastic processes, such as ammonia, amines, carboxylic acids, ethanol, 1-butanol, acetone, ethyl acetate, phenol, hydrogen sulfide and water were selected as the marker-substances. The selective coating of sensors was chosen based on the results of the numerous studies for the living systems of different nature in order to determine the deviations from the norm, which included standard chromatographic phases and specific sorbents (indicators, crown ethers). It was shown that the analytical information of the electronic nose based on the piezoelectric sensors no more dependent on the experimental conditions than other popular, widely used methods of analysis. The informative value of the sensors array’ output signals which were used to identify the substances was described. The array set of piezoelectric sensors identification parameters was established in order to detect amines, organic acids, alcohols, ethyl acetate, acetone in the equilibrium gas phase over the aqueous solutions. The influence of the sensors order in the array on the values of three-element identification parameters has been demonstrated. The scheme of the identification parameters application, including nonselective ones, has been proposed for detecting the organic substances coincidentally at least two parameters. The possibility of an application of these parameters to identify amines, acids, alcohols, ketones in the equilibrium gas phase over the aqueous solutions of mixtures from these substances has been proven. This approach was characterized by high sensitivity and specificity, and may be used for the identification of substances in equilibrium gas phase over the samples with high water content (blood, urine, lymph, perspiration, juices, beverages).ΠžΠ±ΡΡƒΠΆΠ΄Π°Π΅Ρ‚ΡΡ влияниС Ρ‚Π΅ΠΌΠΏΠ΅Ρ€Π°Ρ‚ΡƒΡ€Ρ‹, влаТности, Ρ€Π΅ΠΆΠΈΠΌΠΎΠ² измСрСния, собствСнных характСристик ΠΏΡŒΠ΅Π·ΠΎΡ€Π΅Π·ΠΎΠ½Π°Ρ‚ΠΎΡ€ΠΎΠ², ΠΏΡ€ΠΈΡ€ΠΎΠ΄Ρ‹ ΠΈ массы сорбСнта, ΠΏΡ€ΠΈΡ€ΠΎΠ΄Ρ‹ ΠΈ содСрТания Π°Π½Π°Π»ΠΈΡ‚Π°, Ρ‚ΠΈΠΏΠ° ΠΏΡ€ΠΎΠ± Π½Π° Π²Ρ‹Ρ…ΠΎΠ΄Π½Ρ‹Π΅ Π΄Π°Π½Π½Ρ‹Π΅ массива ΠΏΡŒΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡ€ΠΎΠ², Π² Ρ‚ΠΎΠΌ числС Π½Π° ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Ρ‹, ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅ΠΌΡ‹Π΅ для ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ вСщСств Π² смСсях, ΠΈ ΠΏΡƒΡ‚ΠΈ устранСния ΠΈΠ»ΠΈ ΠΌΠΈΠ½ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ этого влияния. Показано, Ρ‡Ρ‚ΠΎ аналитичСская информация «элСктронного носа» Π½Π° ΠΏΡŒΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡ€Π°Ρ… Π½Π΅ Π±ΠΎΠ»Π΅Π΅ зависима ΠΎΡ‚ условий экспСримСнта, Ρ‡Π΅ΠΌ популярныС, ΡˆΠΈΡ€ΠΎΠΊΠΎ распространСнныС ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ Π°Π½Π°Π»ΠΈΠ·Π°. Описана ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ Π²Ρ‹Ρ…ΠΎΠ΄Π½Ρ‹Ρ… сигналов массива сСнсоров, ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅ΠΌΡ‹Ρ… для ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ вСщСств. УстановлСны ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Π΅ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Ρ‹ массива ΠΏΡŒΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡ€ΠΎΠ² для обнаруТСния Π°ΠΌΠΈΠ½ΠΎΠ², органичСских кислот, спиртов, этилацСтата, Π°Ρ†Π΅Ρ‚ΠΎΠ½Π° Π² равновСсной Π³Π°Π·ΠΎΠ²ΠΎΠΉ Ρ„Π°Π·Π΅ Π½Π°Π΄ Π²ΠΎΠ΄Π½Ρ‹ΠΌΠΈ растворами. ΠŸΡ€ΠΎΠ΄Π΅ΠΌΠΎΠ½ΡΡ‚Ρ€ΠΈΡ€ΠΎΠ²Π°Π½ΠΎ влияниС порядка располоТСния сСнсоров Π² массивС Π½Π° значСния трСхэлСмСнтных ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ². ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π° схСма примСнСния ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ², Π² Ρ‚ΠΎΠΌ числС нСсСлСктивных, для обнаруТСния органичСских вСщСств ΠΏΠΎ совпадСнию Π½Π΅ ΠΌΠ΅Π½Π΅Π΅ Π΄Π²ΡƒΡ… ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ². Π”ΠΎΠΊΠ°Π·Π°Π½Π° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ примСнСния Π΄Π°Π½Π½Ρ‹Ρ… ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² для ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ Π°ΠΌΠΈΠ½ΠΎΠ², кислот, спиртов, ΠΊΠ΅Ρ‚ΠΎΠ½ΠΎΠ² Π² равновСсной Π³Π°Π·ΠΎΠ²ΠΎΠΉ Ρ„Π°Π·Π΅ Π½Π°Π΄ Π²ΠΎΠ΄Π½Ρ‹ΠΌΠΈ растворами ΠΈΡ… смСсСй. Π”Π°Π½Π½Ρ‹ΠΉ ΠΏΠΎΠ΄Ρ…ΠΎΠ΄ характСризуСтся высокой Ρ‡ΡƒΠ²ΡΡ‚Π²ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΡŒΡŽ ΠΈ ΡΠΏΠ΅Ρ†ΠΈΡ„ΠΈΡ‡Π½ΠΎΡΡ‚ΡŒΡŽ ΠΈ ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ использован для ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ вСщСств Π² равновСсной Π³Π°Π·ΠΎΠ²ΠΎΠΉ Ρ„Π°Π·Π΅ Π½Π°Π΄ ΠΏΡ€ΠΎΠ±Π°ΠΌΠΈ с большим содСрТаниСм Π²ΠΎΠ΄Ρ‹ (ΠΊΡ€ΠΎΠ²ΡŒ, ΠΌΠΎΡ‡Π°, Π»ΠΈΠΌΡ„Π°, ΠΏΠΎΡ‚, соки, Π½Π°ΠΏΠΈΡ‚ΠΊΠΈ)

    Quantum dots: experience and prospects of application in analytical systems

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    Π‘Ρ‚Π°Ρ‚ΡŒΡ носит ΠΎΠ±Π·ΠΎΡ€Π½Ρ‹ΠΉ Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€, Π² Π½Π΅ΠΉ анализируСтся Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ° ΠΏΡƒΠ±Π»ΠΈΠΊΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠΉ активности, ΠΎΡ†Π΅Π½ΠΈΠ²Π°ΡŽΡ‚ΡΡ возмоТности примСнСния ΠΊΠ²Π°Π½Ρ‚ΠΎΠ²Ρ‹Ρ… Ρ‚ΠΎΡ‡Π΅ΠΊ для Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… аналитичСских Π·Π°Π΄Π°Ρ‡. ΠŸΡ€ΠΈ этом Π²Π½ΠΈΠΌΠ°Π½ΠΈΠ΅ удСляСтся ΠΊΠ°ΠΊ Ρ‚Ρ€Π°Π΄ΠΈΡ†ΠΈΠΎΠ½Π½Ρ‹ΠΌ, Ρ‚Π°ΠΊ ΠΈ ΡΡ€Π°Π²Π½ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ Ρ€Π΅Π΄ΠΊΠΈΠΌ направлСниям аналитичСского примСнСния этих наноструктур. ΠŸΡ€Π΅Π΄ΡΡ‚Π°Π²Π»Π΅Π½ ΠΊΡ€Π°Ρ‚ΠΊΠΈΠΉ ΠΎΠ±Π·ΠΎΡ€ Ρ‚ΠΈΠΏΠΎΠ², достоинств ΠΈ нСдостатков способов синтСза, влияния Π²Π½Π΅ΡˆΠ½ΠΈΡ… Ρ„Π°ΠΊΡ‚ΠΎΡ€ΠΎΠ² Π½Π° ΡˆΠΈΡ€ΠΈΠ½Ρƒ Π·Π°ΠΏΡ€Π΅Ρ‰Π΅Π½Π½ΠΎΠΉ Π·ΠΎΠ½Ρ‹ ΠΈ ΠΈΠ½Ρ‚Π΅Π½ΡΠΈΠ²Π½ΠΎΡΡ‚ΡŒ Π»ΡŽΠΌΠΈΠ½Π΅ΡΡ†Π΅Π½Ρ†ΠΈΠΈ нСорганичСских Π½Π°Π½ΠΎΡ€Π°Π·ΠΌΠ΅Ρ€Π½Ρ‹Ρ… Π»ΡŽΠΌΠΈΠ½ΠΎΡ„ΠΎΡ€ΠΎΠ² - ΠΊΠ²Π°Π½Ρ‚ΠΎΠ²Ρ‹Ρ… Ρ‚ΠΎΡ‡Π΅ΠΊ Ρ€Π°Π·Π½ΠΎΠΉ ΠΏΡ€ΠΈΡ€ΠΎΠ΄Ρ‹. БистСматизированы области примСнСния ΠΈ основныС Π·Π°Π΄Π°Ρ‡ΠΈ, Ρ€Π΅ΡˆΠ°Π΅ΠΌΡ‹Π΅ с ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ ΠΊΠ²Π°Π½Ρ‚ΠΎΠ²Ρ‹Ρ… Ρ‚ΠΎΡ‡Π΅ΠΊ. ΠžΠ±ΡΡƒΠΆΠ΄Π°ΡŽΡ‚ΡΡ ΠΈΡ… аналитичСскиС характСристики, эксплуатационныС свойства ΠΈ способы управлСния ΠΈΠΌΠΈ. Показано, Ρ‡Ρ‚ΠΎ эффСктивным способом управлСния аналитичСскими свойствами систСм Π½Π° основС ΠΊΠ²Π°Π½Ρ‚ΠΎΠ²Ρ‹Ρ… Ρ‚ΠΎΡ‡Π΅ΠΊ являСтся Π½Π°ΠΏΡ€Π°Π²Π»Π΅Π½Π½ΠΎΠ΅ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ сродства ΠΊ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚Π°ΠΌ Π·Π° счСт Π²Π°Ρ€ΡŒΠΈΡ€ΠΎΠ²Π°Π½ΠΈΡ ΠΏΡ€ΠΈΡ€ΠΎΠ΄Ρ‹ ΡΡ‚Π°Π±ΠΈΠ»ΠΈΠ·ΠΈΡ€ΡƒΡŽΡ‰Π΅ΠΉ ΠΈΠ»ΠΈ ΠΌΠΎΠ΄ΠΈΡ„ΠΈΡ†ΠΈΡ€ΡƒΡŽΡ‰Π΅ΠΉ ΠΎΠ±ΠΎΠ»ΠΎΡ‡ΠΊΠΈ. Для использования Π² аналитичСских цСлях Π²Ρ‹Π΄Π΅Π»Π΅Π½Ρ‹ ΠΏΠΎΠ»ΡƒΠΏΡ€ΠΎΠ²ΠΎΠ΄Π½ΠΈΠΊΠΎΠ²Ρ‹Π΅ ΠΊΠΎΠ»Π»ΠΎΠΈΠ΄Π½Ρ‹Π΅ ΠΊΠ²Π°Π½Ρ‚ΠΎΠ²Ρ‹Π΅ Ρ‚ΠΎΡ‡ΠΊΠΈ, ΠΏΠΎΠΊΡ€Ρ‹Ρ‚Ρ‹Π΅ ΠΎΠ±ΠΎΠ»ΠΎΡ‡ΠΊΠΎΠΉ с большСй ΡˆΠΈΡ€ΠΈΠ½ΠΎΠΉ Π·Π°ΠΏΡ€Π΅Ρ‰Π΅Π½Π½ΠΎΠΉ Π·ΠΎΠ½Ρ‹, ΠΊΠ°ΠΊ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ часто ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅ΠΌΡ‹Π΅ систСмы, благодаря ΠΈΡ… Ρ…ΠΎΡ€ΠΎΡˆΠΈΠΌ Ρ„ΠΎΡ‚ΠΎΡΡ‚Π°Π±ΠΈΠ»ΡŒΠ½ΠΎΡΡ‚ΠΈ ΠΈ ΠΊΠ²Π°Π½Ρ‚ΠΎΠ²ΠΎΠΌΡƒ Π²Ρ‹Ρ…ΠΎΠ΄Ρƒ флуорСсцСнции. ΠŸΠΎΠΊΠ°Π·Π°Π½Ρ‹ прСимущСства ΠΈ нСдостатки Π΄Ρ€ΡƒΠ³ΠΈΡ… Ρ‚ΠΈΠΏΠΎΠ² ΠΎΠ±ΠΎΠ»ΠΎΡ‡Π΅ΠΊ, Π° Ρ‚Π°ΠΊΠΆΠ΅ способы ΠΈΡ… ΠΌΠΎΠ΄ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ. РассмотрСны Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ для органичСского Π°Π½Π°Π»ΠΈΠ·Π° ΠΈ мСдицинской диагностики. РассмотрСны систСмы ΠΊΠ²Π°Π½Ρ‚ΠΎΠ²Ρ‹Ρ… Ρ‚ΠΎΡ‡Π΅ΠΊ, примСняСмыС Π² качСствС биосСнсоров, с Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹ΠΌΠΈ Π½Π°ΠΏΡ€Π°Π²Π»ΡΡŽΡ‰ΠΈΠΌΠΈ Π°Π³Π΅Π½Ρ‚Π°ΠΌΠΈ, сопоставлСны ΠΈΡ… свойства, достоинства ΠΈ нСдостатки. ΠžΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½Ρ‹ ΠΌΠ°Π»ΠΎ ΠΏΡ€ΠΎΡ€Π°Π±ΠΎΡ‚Π°Π½Π½Ρ‹Π΅ вопросы ΠΈ Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ Π² Π½Π°ΠΏΡ€Π°Π²Π»Π΅Π½ΠΈΠΈ примСнСния ΠΊΠ²Π°Π½Ρ‚ΠΎΠ²Ρ‹Ρ… Ρ‚ΠΎΡ‡Π΅ΠΊ для Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ сСнсорных систСм, использования ΠΈΡ… для Π½Π΅ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° ΠΆΠΈΠ²Ρ‹Ρ… систСм ΠΏΠΎ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π°ΠΌ дСтСктирования Π»Π΅Π³ΠΊΠΎ Π»Π΅Ρ‚ΡƒΡ‡ΠΈΡ… органичСских соСдинСний.The article is of a review nature, in which the dynamics of publication activity is analyzed and the possibilities of using quantum dots to solve various analytical problems are evaluated. The attention is paid to both traditional and relatively rare areas of analytical application of these nanostructures. A brief review of the types, advantages and disadvantages of synthesis methods, the influence of external factors on the band gap and luminescence intensity of inorganic nanosized phosphors, quantum dots of different nature, is presented. The areas of application and the main tasks solved with the use of quantum dots are systematized. Their analytical characteristics, operational properties and ways of regulating them are discussed. An effective way to control the analytical properties of the systems based on quantum dots is a directional change of the affinity for components by varying the nature of the stabilizing or modifying shell. Semiconductor colloidal quantum dots coated with a larger bandgap shell were selected for analytical use as the most commonly used systems due to their good photostability and fluorescence quantum yield. The advantages and disadvantages of other types of shells, as well as ways of modifying them, are shown. Solutions for organic analysis and medical diagnostics are considered. Systems of quantum dots used as biosensors with various guiding agents are considered, and their properties, advantages and disadvantages compared. Little studied issues and solutions in the direction of using quantum dots for developing sensor systems and their use for non-invasive analysis of living systems based on the results of detection of volatile organic compounds are identified.ИсслСдованиС Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ Π·Π° счСт Π³Ρ€Π°Π½Ρ‚Π° Российского Π½Π°ΡƒΡ‡Π½ΠΎΠ³ΠΎ Ρ„ΠΎΠ½Π΄Π° β„– 23-23-00609, https://rscf.ru/project/ 23-23-00609.This work was supported by the Russian Science Foundation (grant no. β„– 23-23-00609, https://rscf.ru/project/ 23-23-00609

    Artificial smell sensor systems in the diagnostics of neurodegenerative diseases

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    НСйродСгСнСративныС заболСвания ΠΏΡ€Π΅Π΄ΡΡ‚Π°Π²Π»ΡΡŽΡ‚ собой Π³Ρ€ΡƒΠΏΠΏΡƒ Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ Π½Π΅Ρ€Π²Π½ΠΎΠΉ систСмы, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ·ΡƒΡŽΡ‚ΡΡ ΠΌΠ½ΠΎΠ³ΠΎΠ»Π΅Ρ‚Π½Π΅ΠΉ Π»Π°Ρ‚Π΅Π½Ρ‚Π½ΠΎΠΉ стадиСй, ΠΌΠ½ΠΎΠ³ΠΎΠΎΠ±Ρ€Π°Π·Π½ΠΎΡΡ‚ΡŒΡŽ проявлСний, связанных с Π½Π΅ΠΎΠ΄Π½ΠΎΡ€ΠΎΠ΄Π½ΠΎΡΡ‚ΡŒΡŽ симптомов, Ρ€Π°Π·Π»ΠΈΡ‡Π½ΠΎΠΉ Π°Π³Ρ€Π΅ΡΡΠΈΠ²Π½ΠΎΡΡ‚ΡŒΡŽ тСчСния ΠΈ ΠΏΡ€ΠΎΠ³Ρ€Π΅ΡΡΠΈΡ€ΡƒΡŽΡ‰Π΅ΠΉ гибСлью Π½Π΅ΠΉΡ€ΠΎΠ½ΠΎΠ². НСйродСгСнСративныС заболСвания Π² основном Π΄ΠΈΠ°Π³Π½ΠΎΡΡ‚ΠΈΡ€ΡƒΡŽΡ‚ΡΡ Π½Π° основании клиничСских Π΄Π°Π½Π½Ρ‹Ρ… ΠΈ дорогостоящих ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½Ρ‹Ρ… ΠΈ Π½Π΅ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½Ρ‹Ρ… ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² Π²ΠΈΠ·ΡƒΠ°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ. ΠžΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½Π½ΠΎΠ³ΠΎ Π»Π°Π±ΠΎΡ€Π°Ρ‚ΠΎΡ€Π½ΠΎΠ³ΠΎ тСста для диагностики Π½Π΅ΠΉΡ€ΠΎΠ΄Π΅Π³Π΅Π½Π΅Ρ€Π°Ρ‚ΠΈΠ²Π½Ρ‹Ρ… Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ Π½Π΅ сущСствуСт. Π’Ρ‹Π΄Ρ‹Ρ…Π°Π΅ΠΌΡ‹ΠΉ Π²ΠΎΠ·Π΄ΡƒΡ… являСтся сСкрСциСй ΠΎΡ€Π³Π°Π½ΠΈΠ·ΠΌΠ°, ΠΈ процСсс Π΅Π³ΠΎ ΠΎΡ‚Π±ΠΎΡ€Π° прост ΠΈ экономичСн. Анализ Π²Ρ‹Π΄Ρ‹Ρ…Π°Π΅ΠΌΠΎΠ³ΠΎ Π³Π°Π·Π° ΠΏΡ€Π΅Π΄Π»Π°Π³Π°Π΅Ρ‚ Π½Π΅Π΄ΠΎΡ€ΠΎΠ³ΠΎΠΉ, Π½Π΅ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½Ρ‹ΠΉ ΠΌΠ΅Ρ‚ΠΎΠ΄ для выявлСния большого количСства Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ, Π² Ρ‚ΠΎΠΌ числС Π½Π΅ΠΉΡ€ΠΎΠ΄Π΅Π³Π΅Π½Π΅Ρ€Π°Ρ‚ΠΈΠ²Π½Ρ‹Ρ…. ΠœΠΎΠ»Π΅ΠΊΡƒΠ»ΡΡ€Π½Ρ‹Π΅ ΠΏΡ€ΠΎΡ„ΠΈΠ»ΠΈ Π»Π΅Π³ΠΊΠΎΠ»Π΅Ρ‚ΡƒΡ‡ΠΈΡ… органичСских соСдинСний Π²Ρ‹Π΄Ρ‹Ρ…Π°Π΅ΠΌΠΎΠ³ΠΎ Π²ΠΎΠ·Π΄ΡƒΡ…Π° для диагностики ряда Π½Π΅ΠΉΡ€ΠΎΠ΄Π΅Π³Π΅Π½Π΅Ρ€Π°Ρ‚ΠΈΠ²Π½Ρ‹Ρ… Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ ΠΌΠΎΠΆΠ½ΠΎ ΠΏΠΎΠ»ΡƒΡ‡ΠΈΡ‚ΡŒ, анализируя Π΄Ρ‹Ρ…Π°Π½ΠΈΠ΅ Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ° с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ «элСктронного носа». Π˜Π΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΡ Π»Π΅Π³ΠΊΠΎΠ»Π΅Ρ‚ΡƒΡ‡ΠΈΡ… органичСских соСдинСний ΠΈ ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΠΈΡ… Π² качСствС спСцифичных Π±ΠΈΠΎΠΌΠ°Ρ€ΠΊΠ΅Ρ€ΠΎΠ² Π½Π΅ΠΉΡ€ΠΎΠ΄Π΅Π³Π΅Π½Π΅Ρ€Π°Ρ‚ΠΈΠ²Π½Ρ‹Ρ… Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ для получСния Ρ‚ΠΎΡ‡Π½ΠΎΠΉ, воспроизводимой ΠΈ быстрой диагностики ΠΌΠΎΠΆΠ΅Ρ‚ ΡΠ»ΡƒΠΆΠΈΡ‚ΡŒ Π°Π»ΡŒΡ‚Π΅Ρ€Π½Π°Ρ‚ΠΈΠ²ΠΎΠΉ Ρ‚Ρ€Π°Π΄ΠΈΡ†ΠΈΠΎΠ½Π½Ρ‹ΠΌ ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½Ρ‹ΠΌ ΠΌΠ΅Ρ‚ΠΎΠ΄Π°ΠΌ. ΠžΠ±Π·ΠΎΡ€ посвящСн ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠ°ΠΌ ΠΈ достиТСниям послСднСго дСсятилСтия (2014-2023 Π³Π³.) Π² сфСрС примСнСния Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ «элСктронный нос» для опрСдСлСния ΠΈ ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½Ρ‹Ρ… Π»Π΅Π³ΠΊΠΎΠ»Π΅Ρ‚ΡƒΡ‡ΠΈΡ… органичСских соСдинСний Π½Π΅ΠΉΡ€ΠΎΠ΄Π΅Π³Π΅Π½Π΅Ρ€Π°Ρ‚ΠΈΠ²Π½Ρ‹Ρ… процСссов. Π’ ΠΎΠ±Π·ΠΎΡ€Π΅ прСдставлСны исслСдования ΠΏΠΎ ΠΎΠ±Π½Π°Ρ€ΡƒΠΆΠ΅Π½ΠΈΡŽ ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½Ρ‹Ρ… Π»Π΅Ρ‚ΡƒΡ‡ΠΈΡ… органичСских соСдинСний Π² Π²Ρ‹Π΄Ρ‹Ρ…Π°Π΅ΠΌΠΎΠΌ Π²ΠΎΠ·Π΄ΡƒΡ…Π΅ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с болСзнями ΠΠ»ΡŒΡ†Π³Π΅ΠΉΠΌΠ΅Ρ€Π°, ΠŸΠ°Ρ€ΠΊΠΈΠ½ΡΠΎΠ½Π°, рассСянного склСроза, Π±ΠΎΠΊΠΎΠ²ΠΎΠ³ΠΎ амиотрофичСского склСроза с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ «элСктронного носа», Π³Π°Π·ΠΎΠ²ΠΎΠΉ Ρ…Ρ€ΠΎΠΌΠ°Ρ‚ΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ-масс-спСктромСтрии. ΠžΠ±ΡΡƒΠΆΠ΄Π°ΡŽΡ‚ΡΡ Ρ‚Π΅Π½Π΄Π΅Π½Ρ†ΠΈΠΈ развития ΠΈ примСнСния Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ «элСктронный нос» для оказания мСдицинской ΠΏΠΎΠΌΠΎΡ‰ΠΈ, способной Π²Ρ‹ΠΏΠΎΠ»Π½ΡΡ‚ΡŒ Ρ‚ΠΎΡ‡Π½Ρ‹Π΅ Ρ‡ΡƒΠ²ΡΡ‚Π²ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹Π΅ опрСдСлСния ΠΊΠ»ΡŽΡ‡Π΅Π²Ρ‹Ρ… Π»Π΅Ρ‚ΡƒΡ‡ΠΈΡ… органичСских соСдинСний Π² Π²Ρ‹Π΄Ρ‹Ρ…Π°Π΅ΠΌΠΎΠΌ Π²ΠΎΠ·Π΄ΡƒΡ…Π΅.Neurodegenerative diseases are a group of diseases of the nervous system that are characterized by a long-term latent stage, a variety of manifestations associated with heterogeneity of symptoms, different aggressiveness of the course, and progressive death of neurons. Neurodegenerative diseases are mainly diagnosed on the basis of clinical data and expensive invasive and non-invasive imaging techniques. There is no specific laboratory test for diagnosing neurodegenerative diseases. Exhaled air is the secretion of the body, and the process of its selection is simple and economical. Exhaled gas analysis offers an inexpensive, non-invasive method for detecting a wide range of diseases, including neurodegenerative ones. Molecular profiles of volatile organic compounds in exhaled air for the diagnosis of a number of neurodegenerative diseases can be obtained by analyzing human breath using an β€œelectronic nose”. Identification of volatile organic compounds and their use as specific biomarkers of neurodegenerative diseases for obtaining accurate, reproducible and rapid diagnostics can serve as an alternative to traditional invasive methods. The review is devoted to the problems and achievements of the last decade (2014–2023) in the field of application of the "electronic nose" technology for determination and identification of potential highly volatile organic compounds of neurodegenerative processes. The review presents studies on the detection of potential volatile organic compounds in the exhaled air of patients with Alzheimer's disease, Parkinson's disease, multiple sclerosis, and amyotrophic lateral sclerosis using β€œelectronic nose”, gas chromatography-mass spectrometry. Trends in the development and the use of "electronic nose" technology to provide medical care capable of performing accurate, sensitive determinations of key volatile organic compounds in the exhaled air are discussed

    THE USE OF "ELECTRONIC SENSORS" IN ASSESSING THE FLAVOR OF BAKERY PRODUCTS FOR FUNCTIONAL PURPOSES

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    The percentage of the introduction of hemp flour into the formulation of bakery products for functional purposes through the use of "electronic sensors" for flavor research has been experimentally substantiated. Hemp flour has a pronounced color, taste and smell, which gives the composite mixtures a slightly herbaceous taste, while there is no unpleasant foreign smell
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