51 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
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
Π ΡΡΠ°ΡΡΠ΅ ΠΏΡΠΎΠ°Π½Π°Π»ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Ρ ΠΏΡΠ±Π»ΠΈΠΊΠ°ΡΠΈΠΈ ΠΠΈΡΠ΅ΠΊΡΠΈΠΈ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΉ Π£ΡΠ€Π£, ΠΏΠΎΡΠ²ΡΡΠ΅Π½Π½ΡΠ΅ ΠΏΡΠΎΠ΄Π²ΠΈΠΆΠ΅Π½ΠΈΡ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΡΠ΅ΡΠ²ΠΈΡΠΎΠ². ΠΠΎΠΊΠ°Π·Π°Π½Ρ ΡΡΠΈΠ»ΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ°Π·Π»ΠΈΡΠΈΡ ΡΠ΅ΠΊΡΡΠΎΠ², ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½ΡΠ΅ΠΌΡΡ
ΠΏΠΎ ΡΠ°Π·Π½ΡΠΌ ΠΊΠ°Π½Π°Π»Π°ΠΌ ΠΈ ΡΠ°ΡΡΡΠΈΡΠ°Π½Π½ΡΡ
Π½Π° ΡΠ°Π·Π½ΡΡ ΡΠ΅Π»Π΅Π²ΡΡ Π°ΡΠ΄ΠΈΡΠΎΡΠΈΡ.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
ΠΠ²Π°Π½ΡΠΎΠ²ΡΠ΅ ΡΠΎΡΠΊΠΈ: ΠΎΠΏΡΡ ΠΈ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Ρ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ Π² Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΡ ΡΠΈΡΡΠ΅ΠΌΠ°Ρ
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‘ΡΠ°ΡΡΡ Π½ΠΎΡΠΈΡ ΠΎΠ±Π·ΠΎΡΠ½ΡΠΉ Ρ
Π°ΡΠ°ΠΊΡΠ΅Ρ, Π² Π½Π΅ΠΉ Π°Π½Π°Π»ΠΈΠ·ΠΈΡΡΠ΅ΡΡΡ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ° ΠΏΡΠ±Π»ΠΈΠΊΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΉ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ, ΠΎΡΠ΅Π½ΠΈΠ²Π°ΡΡΡΡ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΡ
ΡΠΎΡΠ΅ΠΊ Π΄Π»Ρ ΡΠ΅ΡΠ΅Π½ΠΈΡ ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΡ
Π·Π°Π΄Π°Ρ. ΠΡΠΈ ΡΡΠΎΠΌ Π²Π½ΠΈΠΌΠ°Π½ΠΈΠ΅ ΡΠ΄Π΅Π»ΡΠ΅ΡΡΡ ΠΊΠ°ΠΊ ΡΡΠ°Π΄ΠΈΡΠΈΠΎΠ½Π½ΡΠΌ, ΡΠ°ΠΊ ΠΈ ΡΡΠ°Π²Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠ΅Π΄ΠΊΠΈΠΌ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡΠΌ Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΡΡΠΈΡ
Π½Π°Π½ΠΎΡΡΡΡΠΊΡΡΡ. ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ ΠΊΡΠ°ΡΠΊΠΈΠΉ ΠΎΠ±Π·ΠΎΡ ΡΠΈΠΏΠΎΠ², Π΄ΠΎΡΡΠΎΠΈΠ½ΡΡΠ² ΠΈ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΊΠΎΠ² ΡΠΏΠΎΡΠΎΠ±ΠΎΠ² ΡΠΈΠ½ΡΠ΅Π·Π°, Π²Π»ΠΈΡΠ½ΠΈΡ Π²Π½Π΅ΡΠ½ΠΈΡ
ΡΠ°ΠΊΡΠΎΡΠΎΠ² Π½Π° ΡΠΈΡΠΈΠ½Ρ Π·Π°ΠΏΡΠ΅ΡΠ΅Π½Π½ΠΎΠΉ Π·ΠΎΠ½Ρ ΠΈ ΠΈΠ½ΡΠ΅Π½ΡΠΈΠ²Π½ΠΎΡΡΡ Π»ΡΠΌΠΈΠ½Π΅ΡΡΠ΅Π½ΡΠΈΠΈ Π½Π΅ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
Π½Π°Π½ΠΎΡΠ°Π·ΠΌΠ΅ΡΠ½ΡΡ
Π»ΡΠΌΠΈΠ½ΠΎΡΠΎΡΠΎΠ² - ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΡ
ΡΠΎΡΠ΅ΠΊ ΡΠ°Π·Π½ΠΎΠΉ ΠΏΡΠΈΡΠΎΠ΄Ρ. Π‘ΠΈΡΡΠ΅ΠΌΠ°ΡΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Ρ ΠΎΠ±Π»Π°ΡΡΠΈ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΈ ΠΎΡΠ½ΠΎΠ²Π½ΡΠ΅ Π·Π°Π΄Π°ΡΠΈ, ΡΠ΅ΡΠ°Π΅ΠΌΡΠ΅ Ρ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΡ
ΡΠΎΡΠ΅ΠΊ. ΠΠ±ΡΡΠΆΠ΄Π°ΡΡΡΡ ΠΈΡ
Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ, ΡΠΊΡΠΏΠ»ΡΠ°ΡΠ°ΡΠΈΠΎΠ½Π½ΡΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π° ΠΈ ΡΠΏΠΎΡΠΎΠ±Ρ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΈΠΌΠΈ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΡΠΌ ΡΠΏΠΎΡΠΎΠ±ΠΎΠΌ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΡΠ²ΠΎΠΉΡΡΠ²Π°ΠΌΠΈ ΡΠΈΡΡΠ΅ΠΌ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΡ
ΡΠΎΡΠ΅ΠΊ ΡΠ²Π»ΡΠ΅ΡΡΡ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½Π½ΠΎΠ΅ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΡΡΠΎΠ΄ΡΡΠ²Π° ΠΊ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠ°ΠΌ Π·Π° ΡΡΠ΅Ρ Π²Π°ΡΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠΈΡΠΎΠ΄Ρ ΡΡΠ°Π±ΠΈΠ»ΠΈΠ·ΠΈΡΡΡΡΠ΅ΠΉ ΠΈΠ»ΠΈ ΠΌΠΎΠ΄ΠΈΡΠΈΡΠΈΡΡΡΡΠ΅ΠΉ ΠΎΠ±ΠΎΠ»ΠΎΡΠΊΠΈ. ΠΠ»Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ Π² Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ΅Π»ΡΡ
Π²ΡΠ΄Π΅Π»Π΅Π½Ρ ΠΏΠΎΠ»ΡΠΏΡΠΎΠ²ΠΎΠ΄Π½ΠΈΠΊΠΎΠ²ΡΠ΅ ΠΊΠΎΠ»Π»ΠΎΠΈΠ΄Π½ΡΠ΅ ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΠ΅ ΡΠΎΡΠΊΠΈ, ΠΏΠΎΠΊΡΡΡΡΠ΅ ΠΎΠ±ΠΎΠ»ΠΎΡΠΊΠΎΠΉ Ρ Π±ΠΎΠ»ΡΡΠ΅ΠΉ ΡΠΈΡΠΈΠ½ΠΎΠΉ Π·Π°ΠΏΡΠ΅ΡΠ΅Π½Π½ΠΎΠΉ Π·ΠΎΠ½Ρ, ΠΊΠ°ΠΊ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΡΠ°ΡΡΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΠΌΡΠ΅ ΡΠΈΡΡΠ΅ΠΌΡ, Π±Π»Π°Π³ΠΎΠ΄Π°ΡΡ ΠΈΡ
Ρ
ΠΎΡΠΎΡΠΈΠΌ ΡΠΎΡΠΎΡΡΠ°Π±ΠΈΠ»ΡΠ½ΠΎΡΡΠΈ ΠΈ ΠΊΠ²Π°Π½ΡΠΎΠ²ΠΎΠΌΡ Π²ΡΡ
ΠΎΠ΄Ρ ΡΠ»ΡΠΎΡΠ΅ΡΡΠ΅Π½ΡΠΈΠΈ. ΠΠΎΠΊΠ°Π·Π°Π½Ρ ΠΏΡΠ΅ΠΈΠΌΡΡΠ΅ΡΡΠ²Π° ΠΈ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΊΠΈ Π΄ΡΡΠ³ΠΈΡ
ΡΠΈΠΏΠΎΠ² ΠΎΠ±ΠΎΠ»ΠΎΡΠ΅ΠΊ, Π° ΡΠ°ΠΊΠΆΠ΅ ΡΠΏΠΎΡΠΎΠ±Ρ ΠΈΡ
ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ. Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ ΡΠ΅ΡΠ΅Π½ΠΈΡ Π΄Π»Ρ ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° ΠΈ ΠΌΠ΅Π΄ΠΈΡΠΈΠ½ΡΠΊΠΎΠΉ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠΈ. Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ ΡΠΈΡΡΠ΅ΠΌΡ ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΡ
ΡΠΎΡΠ΅ΠΊ, ΠΏΡΠΈΠΌΠ΅Π½ΡΠ΅ΠΌΡΠ΅ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ Π±ΠΈΠΎΡΠ΅Π½ΡΠΎΡΠΎΠ², Ρ ΡΠ°Π·Π»ΠΈΡΠ½ΡΠΌΠΈ Π½Π°ΠΏΡΠ°Π²Π»ΡΡΡΠΈΠΌΠΈ Π°Π³Π΅Π½ΡΠ°ΠΌΠΈ, ΡΠΎΠΏΠΎΡΡΠ°Π²Π»Π΅Π½Ρ ΠΈΡ
ΡΠ²ΠΎΠΉΡΡΠ²Π°, Π΄ΠΎΡΡΠΎΠΈΠ½ΡΡΠ²Π° ΠΈ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΊΠΈ. ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ ΠΌΠ°Π»ΠΎ ΠΏΡΠΎΡΠ°Π±ΠΎΡΠ°Π½Π½ΡΠ΅ Π²ΠΎΠΏΡΠΎΡΡ ΠΈ ΡΠ΅ΡΠ΅Π½ΠΈΡ Π² Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΠΈ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΡ
ΡΠΎΡΠ΅ΠΊ Π΄Π»Ρ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠΈ ΡΠ΅Π½ΡΠΎΡΠ½ΡΡ
ΡΠΈΡΡΠ΅ΠΌ, ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ ΠΈΡ
Π΄Π»Ρ Π½Π΅ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° ΠΆΠΈΠ²ΡΡ
ΡΠΈΡΡΠ΅ΠΌ ΠΏΠΎ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌ Π΄Π΅ΡΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π»Π΅Π³ΠΊΠΎ Π»Π΅ΡΡΡΠΈΡ
ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ.ΠΠ»ΡΡΠ΅Π²ΡΠ΅ ΡΠ»ΠΎΠ²Π°: ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΠ΅ ΡΠΎΡΠΊΠΈ, ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅, Π°Π½Π°Π»ΠΈΠ·, ΠΎΠ±Π·ΠΎ
ΠΠΠ€ΠΠ ΠΠΠ’ΠΠΠΠΠ‘Π’Π¬ ΠΠ«Π₯ΠΠΠΠ«Π₯ Π‘ΠΠΠΠΠΠΠ Β«ΠΠΠΠΠ’Π ΠΠΠΠΠΠ ΠΠΠ‘ΠΒ» ΠΠ ΠΠ¬ΠΠΠΠ‘ΠΠΠ‘ΠΠ ΠΠ₯
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 arrayβ 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 ΠΠ±ΡΡΠΆΠ΄Π°Π΅ΡΡΡ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ, Π²Π»Π°ΠΆΠ½ΠΎΡΡΠΈ, ΡΠ΅ΠΆΠΈΠΌΠΎΠ² ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΡ, ΡΠΎΠ±ΡΡΠ²Π΅Π½Π½ΡΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ ΠΏΡΠ΅Π·ΠΎΡΠ΅Π·ΠΎΠ½Π°ΡΠΎΡΠΎΠ², ΠΏΡΠΈΡΠΎΠ΄Ρ ΠΈ ΠΌΠ°ΡΡΡ ΡΠΎΡΠ±Π΅Π½ΡΠ°, ΠΏΡΠΈΡΠΎΠ΄Ρ ΠΈ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΡ Π°Π½Π°Π»ΠΈΡΠ°, ΡΠΈΠΏΠ° ΠΏΡΠΎΠ± Π½Π° Π²ΡΡ
ΠΎΠ΄Π½ΡΠ΅ Π΄Π°Π½Π½ΡΠ΅ ΠΌΠ°ΡΡΠΈΠ²Π° ΠΏΡΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡΠΎΠ², Π² ΡΠΎΠΌ ΡΠΈΡΠ»Π΅ Π½Π° ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡ, ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΠΌΡΠ΅ Π΄Π»Ρ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ Π²Π΅ΡΠ΅ΡΡΠ² Π² ΡΠΌΠ΅ΡΡΡ
, ΠΈ ΠΏΡΡΠΈ ΡΡΡΡΠ°Π½Π΅Π½ΠΈΡ ΠΈΠ»ΠΈ ΠΌΠΈΠ½ΠΈΠΌΠΈΠ·Π°ΡΠΈΠΈ ΡΡΠΎΠ³ΠΎ Π²Π»ΠΈΡΠ½ΠΈΡ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠ°Ρ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΡ Β«ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠ³ΠΎ Π½ΠΎΡΠ°Β» Π½Π° ΠΏΡΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡΠ°Ρ
Π½Π΅ Π±ΠΎΠ»Π΅Π΅ Π·Π°Π²ΠΈΡΠΈΠΌΠ° ΠΎΡ ΡΡΠ»ΠΎΠ²ΠΈΠΉ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°, ΡΠ΅ΠΌ ΠΏΠΎΠΏΡΠ»ΡΡΠ½ΡΠ΅, ΡΠΈΡΠΎΠΊΠΎ ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½Π΅Π½Π½ΡΠ΅ ΠΌΠ΅ΡΠΎΠ΄Ρ Π°Π½Π°Π»ΠΈΠ·Π°. ΠΠΏΠΈΡΠ°Π½Π° ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠ²Π½ΠΎΡΡΡ Π²ΡΡ
ΠΎΠ΄Π½ΡΡ
ΡΠΈΠ³Π½Π°Π»ΠΎΠ² ΠΌΠ°ΡΡΠΈΠ²Π° ΡΠ΅Π½ΡΠΎΡΠΎΠ², ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΠΌΡΡ
Π΄Π»Ρ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ Π²Π΅ΡΠ΅ΡΡΠ². Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Ρ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΎΠ½Π½ΡΠ΅ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡ ΠΌΠ°ΡΡΠΈΠ²Π° ΠΏΡΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡΠΎΠ² Π΄Π»Ρ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΡ Π°ΠΌΠΈΠ½ΠΎΠ², ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠΈΡΠ»ΠΎΡ, ΡΠΏΠΈΡΡΠΎΠ², ΡΡΠΈΠ»Π°ΡΠ΅ΡΠ°ΡΠ°, Π°ΡΠ΅ΡΠΎΠ½Π° Π² ΡΠ°Π²Π½ΠΎΠ²Π΅ΡΠ½ΠΎΠΉ Π³Π°Π·ΠΎΠ²ΠΎΠΉ ΡΠ°Π·Π΅ Π½Π°Π΄ Π²ΠΎΠ΄Π½ΡΠΌΠΈ ΡΠ°ΡΡΠ²ΠΎΡΠ°ΠΌΠΈ. ΠΡΠΎΠ΄Π΅ΠΌΠΎΠ½ΡΡΡΠΈΡΠΎΠ²Π°Π½ΠΎ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΠΏΠΎΡΡΠ΄ΠΊΠ° ΡΠ°ΡΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΡ ΡΠ΅Π½ΡΠΎΡΠΎΠ² Π² ΠΌΠ°ΡΡΠΈΠ²Π΅ Π½Π° Π·Π½Π°ΡΠ΅Π½ΠΈΡ ΡΡΠ΅Ρ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠ½ΡΡ
ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ². ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π° ΡΡ
Π΅ΠΌΠ° ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ², Π² ΡΠΎΠΌ ΡΠΈΡΠ»Π΅ Π½Π΅ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΡΡ
, Π΄Π»Ρ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΡ ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
Π²Π΅ΡΠ΅ΡΡΠ² ΠΏΠΎ ΡΠΎΠ²ΠΏΠ°Π΄Π΅Π½ΠΈΡ Π½Π΅ ΠΌΠ΅Π½Π΅Π΅ Π΄Π²ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ². ΠΠΎΠΊΠ°Π·Π°Π½Π° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ Π΄Π°Π½Π½ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² Π΄Π»Ρ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ Π°ΠΌΠΈΠ½ΠΎΠ², ΠΊΠΈΡΠ»ΠΎΡ, ΡΠΏΠΈΡΡΠΎΠ², ΠΊΠ΅ΡΠΎΠ½ΠΎΠ² Π² ΡΠ°Π²Π½ΠΎΠ²Π΅ΡΠ½ΠΎΠΉ Π³Π°Π·ΠΎΠ²ΠΎΠΉ ΡΠ°Π·Π΅ Π½Π°Π΄ Π²ΠΎΠ΄Π½ΡΠΌΠΈ ΡΠ°ΡΡΠ²ΠΎΡΠ°ΠΌΠΈ ΠΈΡ
ΡΠΌΠ΅ΡΠ΅ΠΉ. ΠΠ°Π½Π½ΡΠΉ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΠ·ΡΠ΅ΡΡΡ Π²ΡΡΠΎΠΊΠΎΠΉ ΡΡΠ²ΡΡΠ²ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡΡ ΠΈ ΡΠΏΠ΅ΡΠΈΡΠΈΡΠ½ΠΎΡΡΡΡ ΠΈ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ Π΄Π»Ρ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ Π²Π΅ΡΠ΅ΡΡΠ² Π² ΡΠ°Π²Π½ΠΎΠ²Π΅ΡΠ½ΠΎΠΉ Π³Π°Π·ΠΎΠ²ΠΎΠΉ ΡΠ°Π·Π΅ Π½Π°Π΄ ΠΏΡΠΎΠ±Π°ΠΌΠΈ Ρ Π±ΠΎΠ»ΡΡΠΈΠΌ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ΠΌ Π²ΠΎΠ΄Ρ (ΠΊΡΠΎΠ²Ρ,Β ΠΌΠΎΡΠ°, Π»ΠΈΠΌΡΠ°, ΠΏΠΎΡ, ΡΠΎΠΊΠΈ, Π½Π°ΠΏΠΈΡΠΊΠΈ).ΠΠ»ΡΡΠ΅Π²ΡΠ΅ ΡΠ»ΠΎΠ²Π°: ΠΏΡΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡΡ, ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΡΠΉ Π½ΠΎΡ, Π²Π΅ΡΠ΅ΡΡΠ²Π°-ΠΌΠ°ΡΠΊΠ΅ΡΡ, Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠΉ ΡΠΈΠ³Π½Π°Π», ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΎΠ½Π½ΡΠ΅ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡ, ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠ²Π½ΠΎΡΡΡ.DOI: http://dx.doi.org/10.15826/analitika.2017.21.2.001
ΠΠΠ‘ΠΠ ΠΠ‘Π‘ΠΠ«Π Π‘ΠΠΠ‘ΠΠ ΠΠΠΠΠΠΠ ΠΠ ΠΠΠΠΠ₯ Π‘ΠΠΠ Π’ΠΠ«Π₯ ΠΠΠΠΠ’ΠΠΠ ΠΠΠ‘Π‘ΠΠΠΠ ΠΠ¬ΠΠΠΠ‘ΠΠΠ‘ΠΠ ΠΠ Β«ΠΠΠΠΠ’Π ΠΠΠΠ«Π ΠΠΠ‘Β»
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 liquidsβ 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 βvisual printβ 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·ΡΠ°Π±ΠΎΡΠ°Π½ ΡΠΊΡΠΏΡΠ΅ΡΡΠ½ΡΠΉ ΡΠΏΠΎΡΠΎΠ± Π°Π½Π°Π»ΠΈΠ·Π° ΡΠΏΠΈΡΡΠΎΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΡ
ΠΆΠΈΠ΄ΠΊΠΎΡΡΠ΅ΠΉ Π½Π°Π±ΠΎΡΠΎΠΌ Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
Π³Π°Π·ΠΎΠ²ΡΡ
ΡΠ΅Π½ΡΠΎΡΠΎΠ² Ρ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΈΠ΅ΠΌ ΠΏΡΠΎΠ± Π½ΠΈΠ·ΠΊΠΎΠ³ΠΎ ΠΊΠ°ΡΠ΅ΡΡΠ²Π°, ΡΠ°Π»ΡΡΠΈΡΠΈΠΊΠ°ΡΠΎΠ² ΠΈ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡΡ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ² ΡΠΈΠ²ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ»Π° Π±Π΅Π· ΡΠ°Π·Π΄Π΅Π»Π΅Π½ΠΈΡ. ΠΠ·ΡΡΠ΅Π½Π° ΡΠΎΡΠ±ΡΠΈΡ Π»Π΅Π³ΠΊΠΎΠ»Π΅ΡΡΡΠΈΡ
ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ², Π²Ρ
ΠΎΠ΄ΡΡΠΈΡ
Π²Β ΠΎΡΠ½ΠΎΠ²Π½ΡΡ Π»Π΅Π³ΠΊΠΎΠ»Π΅ΡΡΡΡΡ ΡΡΠ°ΠΊΡΠΈΡ ΡΠΏΠΈΡΡΠΎΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΡ
ΠΆΠΈΠ΄ΠΊΠΎΡΡΠ΅ΠΉ. ΠΡΠ±ΡΠ°Π½ ΠΎΠΏΡΠΈΠΌΠ°Π»ΡΠ½ΡΠΉ Π½Π°Π±ΠΎΡ ΠΏΡΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡΠΎΠ², ΠΊΠΎΡΠΎΡΡΠΉ Π°Π΄Π°ΠΏΡΠΈΡΠΎΠ²Π°Π½ ΠΊ ΠΎΡΠ½ΠΎΠ²Π½ΡΠΌ ΡΠ΅ΡΡ-Π²Π΅ΡΠ΅ΡΡΠ²Π°ΠΌ (ΠΏΡΠΎΠΏΠ°Π½ΠΎΠ½, ΠΏΡΠΎΠΏΠ°Π½ΠΎΠ»-1, ΠΏΡΠΎΠΏΠ°Π½ΠΎΠ»-2, Π±ΡΡΠ°Π½ΠΎΠ»-1, Π±ΡΡΠ°Π½ΠΎΠ»-2, ΡΡΠ°Π½ΠΎΠ», Π±ΡΡΠ°Π½ΠΎΠ½, Π°ΡΠ΅ΡΠ°Π»ΡΠ΄Π΅Π³ΠΈΠ΄, ΡΡΠΈΠ»Π°ΡΠ΅ΡΠ°Ρ, Π±ΡΡΠΈΠ»Π°ΡΠ΅ΡΠ°Ρ, Π²ΠΎΠ΄Π°). ΠΠΎΠ»ΠΎΠΆΠΈΡΠ΅Π»ΡΠ½ΠΎ ΠΎΡΠ΅Π½Π΅Π½Π° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΡΠΊΡΠΏΡΠ΅ΡΡΠ½ΠΎΠ³ΠΎ ΡΠΏΠΎΡΠΎΠ±Π° ΠΏΡΠ΅Π·ΠΎΠΊΠ²Π°ΡΡΠ΅Π²ΠΎΠ³ΠΎ ΠΌΠΈΠΊΡΠΎΠ²Π·Π²Π΅ΡΠΈΠ²Π°Π½ΠΈΡ Π΄Π»Ρ Π²ΡΡΠ²Π»Π΅Π½ΠΈΡ Π³ΡΡΠ±ΡΡ
ΡΠ°Π»ΡΡΠΈΡΠΈΠΊΠ°ΡΠΎΠ² ΡΠΏΠΈΡΡΠΎΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΡ
Π½Π°ΠΏΠΈΡΠΊΠΎΠ² Ρ Π²ΡΡΠΎΠΊΠΈΠΌ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ΠΌ ΡΡΠ°Π½ΠΎΠ»Π°. ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Ρ ΠΌΠ΅ΡΠΎΠ΄ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄Ρ Π΄Π»Ρ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ Π² ΡΠΌΠ΅ΡΠΈ ΠΏΠ°ΡΠΎΠ² ΠΎΡΠ΄Π΅Π»ΡΠ½ΡΡ
ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ² ΡΠΈΠ²ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ»Π°. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Π° ΠΊΠΎΡΡΠ΅Π»ΡΡΠΈΡ ΠΌΠ΅ΠΆΠ΄Ρ ΠΏΠ»ΠΎΡΠ°Π΄ΡΡ Β«Π²ΠΈΠ·ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΎΡΠΏΠ΅ΡΠ°ΡΠΊΠ°Β» ΡΠΈΠ³Π½Π°Π»ΠΎΠ² Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ΅Π½ΡΠΎΡΠΎΠ² ΠΈ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠ°ΠΌΠΈ Π³Π°Π·ΠΎΠ²ΠΎΠΉ Ρ
ΡΠΎΠΌΠ°ΡΠΎΠ³ΡΠ°ΡΠΈΠΈ. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΡΠΉ ΡΠΏΠΎΡΠΎΠ± ΡΡΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎ ΡΠΌΠ΅Π½ΡΡΠ°Π΅Ρ Π²ΡΠ΅ΠΌΠ΅Π½Π½ΡΠ΅ ΠΈ ΡΠΊΠΎΠ½ΠΎΠΌΠΈΡΠ΅ΡΠΊΠΈΠ΅ Π·Π°ΡΡΠ°ΡΡ ΡΡΡΠΈΠ½Π½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π°, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ Π² ΠΊΠΎΡΠΎΡΠΊΠΈΠ΅ ΡΡΠΎΠΊΠΈ Π²ΡΡΠ²ΠΈΡΡ ΡΠ°Π»ΡΡΠΈΡΠΈΠΊΠ°ΡΡ ΠΈ ΠΏΡΠΎΠ±Ρ, Π½Π΅ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡΠΈΠ΅ Π½ΠΎΡΠΌΠ°ΠΌ, ΠΎΠΏΡΠ΅Π΄Π΅Π»ΠΈΡΡ Π»Π΅Π³ΠΊΠΎΠ»Π΅ΡΡΡΠΈΠ΅ ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΠ΅ Π²Π΅ΡΠ΅ΡΡΠ²Π° ΡΠΈΠ²ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ»Π° Π² Π°Π»ΠΊΠΎΠ³ΠΎΠ»ΡΠ½ΡΡ
Π½Π°ΠΏΠΈΡΠΊΠ°Ρ
Π±Π΅Π· ΡΠ°Π·Π΄Π΅Π»Π΅Π½ΠΈΡ ΠΈ ΠΈΠ½ΠΎΠΉ ΠΏΡΠΎΠ±ΠΎΠΏΠΎΠ΄Π³ΠΎΡΠΎΠ²ΠΊΠΈ.ΠΠ»ΡΡΠ΅Π²ΡΠ΅ ΡΠ»ΠΎΠ²Π°: ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΡ ΡΠΈΠ²ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ»Π°,Β ΡΠΏΠΈΡΡΠΎΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΠ΅ ΠΆΠΈΠ΄ΠΊΠΎΡΡΠΈ, ΠΊΠ°ΡΠ΅ΡΡΠ²ΠΎ, ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΡΠΉ Π½ΠΎΡ, Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ΅Π½ΡΠΎΡΡDOI: http://dx.doi.org/10.15826/analitika.2017.21.3.00
Quantum dots: experience and prospects of application in analytical systems
Π‘ΡΠ°ΡΡΡ Π½ΠΎΡΠΈΡ ΠΎΠ±Π·ΠΎΡΠ½ΡΠΉ Ρ
Π°ΡΠ°ΠΊΡΠ΅Ρ, Π² Π½Π΅ΠΉ Π°Π½Π°Π»ΠΈΠ·ΠΈΡΡΠ΅ΡΡΡ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ° ΠΏΡΠ±Π»ΠΈΠΊΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΉ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ, ΠΎΡΠ΅Π½ΠΈΠ²Π°ΡΡΡΡ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΡ
ΡΠΎΡΠ΅ΠΊ Π΄Π»Ρ ΡΠ΅ΡΠ΅Π½ΠΈΡ ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΡ
Π·Π°Π΄Π°Ρ. ΠΡΠΈ ΡΡΠΎΠΌ Π²Π½ΠΈΠΌΠ°Π½ΠΈΠ΅ ΡΠ΄Π΅Π»ΡΠ΅ΡΡΡ ΠΊΠ°ΠΊ ΡΡΠ°Π΄ΠΈΡΠΈΠΎΠ½Π½ΡΠΌ, ΡΠ°ΠΊ ΠΈ ΡΡΠ°Π²Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠ΅Π΄ΠΊΠΈΠΌ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡΠΌ Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΡΡΠΈΡ
Π½Π°Π½ΠΎΡΡΡΡΠΊΡΡΡ. ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ ΠΊΡΠ°ΡΠΊΠΈΠΉ ΠΎΠ±Π·ΠΎΡ ΡΠΈΠΏΠΎΠ², Π΄ΠΎΡΡΠΎΠΈΠ½ΡΡΠ² ΠΈ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΊΠΎΠ² ΡΠΏΠΎΡΠΎΠ±ΠΎΠ² ΡΠΈΠ½ΡΠ΅Π·Π°, Π²Π»ΠΈΡΠ½ΠΈΡ Π²Π½Π΅ΡΠ½ΠΈΡ
ΡΠ°ΠΊΡΠΎΡΠΎΠ² Π½Π° ΡΠΈΡΠΈΠ½Ρ Π·Π°ΠΏΡΠ΅ΡΠ΅Π½Π½ΠΎΠΉ Π·ΠΎΠ½Ρ ΠΈ ΠΈΠ½ΡΠ΅Π½ΡΠΈΠ²Π½ΠΎΡΡΡ Π»ΡΠΌΠΈΠ½Π΅ΡΡΠ΅Π½ΡΠΈΠΈ Π½Π΅ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
Π½Π°Π½ΠΎΡΠ°Π·ΠΌΠ΅ΡΠ½ΡΡ
Π»ΡΠΌΠΈΠ½ΠΎΡΠΎΡΠΎΠ² - ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΡ
ΡΠΎΡΠ΅ΠΊ ΡΠ°Π·Π½ΠΎΠΉ ΠΏΡΠΈΡΠΎΠ΄Ρ. Π‘ΠΈΡΡΠ΅ΠΌΠ°ΡΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Ρ ΠΎΠ±Π»Π°ΡΡΠΈ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΈ ΠΎΡΠ½ΠΎΠ²Π½ΡΠ΅ Π·Π°Π΄Π°ΡΠΈ, ΡΠ΅ΡΠ°Π΅ΠΌΡΠ΅ Ρ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΡ
ΡΠΎΡΠ΅ΠΊ. ΠΠ±ΡΡΠΆΠ΄Π°ΡΡΡΡ ΠΈΡ
Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ, ΡΠΊΡΠΏΠ»ΡΠ°ΡΠ°ΡΠΈΠΎΠ½Π½ΡΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π° ΠΈ ΡΠΏΠΎΡΠΎΠ±Ρ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΈΠΌΠΈ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΡΠΌ ΡΠΏΠΎΡΠΎΠ±ΠΎΠΌ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΡΠ²ΠΎΠΉΡΡΠ²Π°ΠΌΠΈ ΡΠΈΡΡΠ΅ΠΌ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΡ
ΡΠΎΡΠ΅ΠΊ ΡΠ²Π»ΡΠ΅ΡΡΡ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½Π½ΠΎΠ΅ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΡΡΠΎΠ΄ΡΡΠ²Π° ΠΊ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠ°ΠΌ Π·Π° ΡΡΠ΅Ρ Π²Π°ΡΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠΈΡΠΎΠ΄Ρ ΡΡΠ°Π±ΠΈΠ»ΠΈΠ·ΠΈΡΡΡΡΠ΅ΠΉ ΠΈΠ»ΠΈ ΠΌΠΎΠ΄ΠΈΡΠΈΡΠΈΡΡΡΡΠ΅ΠΉ ΠΎΠ±ΠΎΠ»ΠΎΡΠΊΠΈ. ΠΠ»Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ Π² Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ΅Π»ΡΡ
Π²ΡΠ΄Π΅Π»Π΅Π½Ρ ΠΏΠΎΠ»ΡΠΏΡΠΎΠ²ΠΎΠ΄Π½ΠΈΠΊΠΎΠ²ΡΠ΅ ΠΊΠΎΠ»Π»ΠΎΠΈΠ΄Π½ΡΠ΅ ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΠ΅ ΡΠΎΡΠΊΠΈ, ΠΏΠΎΠΊΡΡΡΡΠ΅ ΠΎΠ±ΠΎΠ»ΠΎΡΠΊΠΎΠΉ Ρ Π±ΠΎΠ»ΡΡΠ΅ΠΉ ΡΠΈΡΠΈΠ½ΠΎΠΉ Π·Π°ΠΏΡΠ΅ΡΠ΅Π½Π½ΠΎΠΉ Π·ΠΎΠ½Ρ, ΠΊΠ°ΠΊ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΡΠ°ΡΡΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΠΌΡΠ΅ ΡΠΈΡΡΠ΅ΠΌΡ, Π±Π»Π°Π³ΠΎΠ΄Π°ΡΡ ΠΈΡ
Ρ
ΠΎΡΠΎΡΠΈΠΌ ΡΠΎΡΠΎΡΡΠ°Π±ΠΈΠ»ΡΠ½ΠΎΡΡΠΈ ΠΈ ΠΊΠ²Π°Π½ΡΠΎΠ²ΠΎΠΌΡ Π²ΡΡ
ΠΎΠ΄Ρ ΡΠ»ΡΠΎΡΠ΅ΡΡΠ΅Π½ΡΠΈΠΈ. ΠΠΎΠΊΠ°Π·Π°Π½Ρ ΠΏΡΠ΅ΠΈΠΌΡΡΠ΅ΡΡΠ²Π° ΠΈ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΊΠΈ Π΄ΡΡΠ³ΠΈΡ
ΡΠΈΠΏΠΎΠ² ΠΎΠ±ΠΎΠ»ΠΎΡΠ΅ΠΊ, Π° ΡΠ°ΠΊΠΆΠ΅ ΡΠΏΠΎΡΠΎΠ±Ρ ΠΈΡ
ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ. Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ ΡΠ΅ΡΠ΅Π½ΠΈΡ Π΄Π»Ρ ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° ΠΈ ΠΌΠ΅Π΄ΠΈΡΠΈΠ½ΡΠΊΠΎΠΉ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠΈ. Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ ΡΠΈΡΡΠ΅ΠΌΡ ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΡ
ΡΠΎΡΠ΅ΠΊ, ΠΏΡΠΈΠΌΠ΅Π½ΡΠ΅ΠΌΡΠ΅ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ Π±ΠΈΠΎΡΠ΅Π½ΡΠΎΡΠΎΠ², Ρ ΡΠ°Π·Π»ΠΈΡΠ½ΡΠΌΠΈ Π½Π°ΠΏΡΠ°Π²Π»ΡΡΡΠΈΠΌΠΈ Π°Π³Π΅Π½ΡΠ°ΠΌΠΈ, ΡΠΎΠΏΠΎΡΡΠ°Π²Π»Π΅Π½Ρ ΠΈΡ
ΡΠ²ΠΎΠΉΡΡΠ²Π°, Π΄ΠΎΡΡΠΎΠΈΠ½ΡΡΠ²Π° ΠΈ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΊΠΈ. ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ ΠΌΠ°Π»ΠΎ ΠΏΡΠΎΡΠ°Π±ΠΎΡΠ°Π½Π½ΡΠ΅ Π²ΠΎΠΏΡΠΎΡΡ ΠΈ ΡΠ΅ΡΠ΅Π½ΠΈΡ Π² Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΠΈ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΡ
ΡΠΎΡΠ΅ΠΊ Π΄Π»Ρ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠΈ ΡΠ΅Π½ΡΠΎΡΠ½ΡΡ
ΡΠΈΡΡΠ΅ΠΌ, ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ ΠΈΡ
Π΄Π»Ρ Π½Π΅ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° ΠΆΠΈΠ²ΡΡ
ΡΠΈΡΡΠ΅ΠΌ ΠΏΠΎ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌ Π΄Π΅ΡΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π»Π΅Π³ΠΊΠΎ Π»Π΅ΡΡΡΠΈΡ
ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ.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.ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΎ Π·Π° ΡΡΠ΅Ρ Π³ΡΠ°Π½ΡΠ° Π ΠΎΡΡΠΈΠΉΡΠΊΠΎΠ³ΠΎ Π½Π°ΡΡΠ½ΠΎΠ³ΠΎ ΡΠΎΠ½Π΄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
Informative nature of the electronic nose output signals based on the piezoelectric sensors
The purpose of this research was assessing the influence of the various factors on the output signals of the static βelectronic noseβ 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 arrayβ 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).ΠΠ±ΡΡΠΆΠ΄Π°Π΅ΡΡΡ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ, Π²Π»Π°ΠΆΠ½ΠΎΡΡΠΈ, ΡΠ΅ΠΆΠΈΠΌΠΎΠ² ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΡ, ΡΠΎΠ±ΡΡΠ²Π΅Π½Π½ΡΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ ΠΏΡΠ΅Π·ΠΎΡΠ΅Π·ΠΎΠ½Π°ΡΠΎΡΠΎΠ², ΠΏΡΠΈΡΠΎΠ΄Ρ ΠΈ ΠΌΠ°ΡΡΡ ΡΠΎΡΠ±Π΅Π½ΡΠ°, ΠΏΡΠΈΡΠΎΠ΄Ρ ΠΈ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΡ Π°Π½Π°Π»ΠΈΡΠ°, ΡΠΈΠΏΠ° ΠΏΡΠΎΠ± Π½Π° Π²ΡΡ
ΠΎΠ΄Π½ΡΠ΅ Π΄Π°Π½Π½ΡΠ΅ ΠΌΠ°ΡΡΠΈΠ²Π° ΠΏΡΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡΠΎΠ², Π² ΡΠΎΠΌ ΡΠΈΡΠ»Π΅ Π½Π° ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡ, ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΠΌΡΠ΅ Π΄Π»Ρ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ Π²Π΅ΡΠ΅ΡΡΠ² Π² ΡΠΌΠ΅ΡΡΡ
, ΠΈ ΠΏΡΡΠΈ ΡΡΡΡΠ°Π½Π΅Π½ΠΈΡ ΠΈΠ»ΠΈ ΠΌΠΈΠ½ΠΈΠΌΠΈΠ·Π°ΡΠΈΠΈ ΡΡΠΎΠ³ΠΎ Π²Π»ΠΈΡΠ½ΠΈΡ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠ°Ρ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΡ Β«ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠ³ΠΎ Π½ΠΎΡΠ°Β» Π½Π° ΠΏΡΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡΠ°Ρ
Π½Π΅ Π±ΠΎΠ»Π΅Π΅ Π·Π°Π²ΠΈΡΠΈΠΌΠ° ΠΎΡ ΡΡΠ»ΠΎΠ²ΠΈΠΉ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°, ΡΠ΅ΠΌ ΠΏΠΎΠΏΡΠ»ΡΡΠ½ΡΠ΅, ΡΠΈΡΠΎΠΊΠΎ ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½Π΅Π½Π½ΡΠ΅ ΠΌΠ΅ΡΠΎΠ΄Ρ Π°Π½Π°Π»ΠΈΠ·Π°. ΠΠΏΠΈΡΠ°Π½Π° ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠ²Π½ΠΎΡΡΡ Π²ΡΡ
ΠΎΠ΄Π½ΡΡ
ΡΠΈΠ³Π½Π°Π»ΠΎΠ² ΠΌΠ°ΡΡΠΈΠ²Π° ΡΠ΅Π½ΡΠΎΡΠΎΠ², ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΠΌΡΡ
Π΄Π»Ρ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ Π²Π΅ΡΠ΅ΡΡΠ². Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Ρ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΎΠ½Π½ΡΠ΅ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡ ΠΌΠ°ΡΡΠΈΠ²Π° ΠΏΡΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡΠΎΠ² Π΄Π»Ρ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΡ Π°ΠΌΠΈΠ½ΠΎΠ², ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠΈΡΠ»ΠΎΡ, ΡΠΏΠΈΡΡΠΎΠ², ΡΡΠΈΠ»Π°ΡΠ΅ΡΠ°ΡΠ°, Π°ΡΠ΅ΡΠΎΠ½Π° Π² ΡΠ°Π²Π½ΠΎΠ²Π΅ΡΠ½ΠΎΠΉ Π³Π°Π·ΠΎΠ²ΠΎΠΉ ΡΠ°Π·Π΅ Π½Π°Π΄ Π²ΠΎΠ΄Π½ΡΠΌΠΈ ΡΠ°ΡΡΠ²ΠΎΡΠ°ΠΌΠΈ. ΠΡΠΎΠ΄Π΅ΠΌΠΎΠ½ΡΡΡΠΈΡΠΎΠ²Π°Π½ΠΎ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΠΏΠΎΡΡΠ΄ΠΊΠ° ΡΠ°ΡΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΡ ΡΠ΅Π½ΡΠΎΡΠΎΠ² Π² ΠΌΠ°ΡΡΠΈΠ²Π΅ Π½Π° Π·Π½Π°ΡΠ΅Π½ΠΈΡ ΡΡΠ΅Ρ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠ½ΡΡ
ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ². ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π° ΡΡ
Π΅ΠΌΠ° ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ², Π² ΡΠΎΠΌ ΡΠΈΡΠ»Π΅ Π½Π΅ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΡΡ
, Π΄Π»Ρ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΡ ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
Π²Π΅ΡΠ΅ΡΡΠ² ΠΏΠΎ ΡΠΎΠ²ΠΏΠ°Π΄Π΅Π½ΠΈΡ Π½Π΅ ΠΌΠ΅Π½Π΅Π΅ Π΄Π²ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ². ΠΠΎΠΊΠ°Π·Π°Π½Π° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ Π΄Π°Π½Π½ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² Π΄Π»Ρ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ Π°ΠΌΠΈΠ½ΠΎΠ², ΠΊΠΈΡΠ»ΠΎΡ, ΡΠΏΠΈΡΡΠΎΠ², ΠΊΠ΅ΡΠΎΠ½ΠΎΠ² Π² ΡΠ°Π²Π½ΠΎΠ²Π΅ΡΠ½ΠΎΠΉ Π³Π°Π·ΠΎΠ²ΠΎΠΉ ΡΠ°Π·Π΅ Π½Π°Π΄ Π²ΠΎΠ΄Π½ΡΠΌΠΈ ΡΠ°ΡΡΠ²ΠΎΡΠ°ΠΌΠΈ ΠΈΡ
ΡΠΌΠ΅ΡΠ΅ΠΉ. ΠΠ°Π½Π½ΡΠΉ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΠ·ΡΠ΅ΡΡΡ Π²ΡΡΠΎΠΊΠΎΠΉ ΡΡΠ²ΡΡΠ²ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡΡ ΠΈ ΡΠΏΠ΅ΡΠΈΡΠΈΡΠ½ΠΎΡΡΡΡ ΠΈ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ Π΄Π»Ρ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ Π²Π΅ΡΠ΅ΡΡΠ² Π² ΡΠ°Π²Π½ΠΎΠ²Π΅ΡΠ½ΠΎΠΉ Π³Π°Π·ΠΎΠ²ΠΎΠΉ ΡΠ°Π·Π΅ Π½Π°Π΄ ΠΏΡΠΎΠ±Π°ΠΌΠΈ Ρ Π±ΠΎΠ»ΡΡΠΈΠΌ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ΠΌ Π²ΠΎΠ΄Ρ (ΠΊΡΠΎΠ²Ρ, ΠΌΠΎΡΠ°, Π»ΠΈΠΌΡΠ°, ΠΏΠΎΡ, ΡΠΎΠΊΠΈ, Π½Π°ΠΏΠΈΡΠΊΠΈ)
Express analysis of hard alcohol drinks using the βelectronic noseβ piezosensors array
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 liquidsβ 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 βvisual printβ 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.Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½ ΡΠΊΡΠΏΡΠ΅ΡΡΠ½ΡΠΉ ΡΠΏΠΎΡΠΎΠ± Π°Π½Π°Π»ΠΈΠ·Π° ΡΠΏΠΈΡΡΠΎΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΡ
ΠΆΠΈΠ΄ΠΊΠΎΡΡΠ΅ΠΉ Π½Π°Π±ΠΎΡΠΎΠΌ Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
Π³Π°Π·ΠΎΠ²ΡΡ
ΡΠ΅Π½ΡΠΎΡΠΎΠ² Ρ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΈΠ΅ΠΌ ΠΏΡΠΎΠ± Π½ΠΈΠ·ΠΊΠΎΠ³ΠΎ ΠΊΠ°ΡΠ΅ΡΡΠ²Π°, ΡΠ°Π»ΡΡΠΈΡΠΈΠΊΠ°ΡΠΎΠ² ΠΈ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡΡ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ² ΡΠΈΠ²ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ»Π° Π±Π΅Π· ΡΠ°Π·Π΄Π΅Π»Π΅Π½ΠΈΡ. ΠΠ·ΡΡΠ΅Π½Π° ΡΠΎΡΠ±ΡΠΈΡ Π»Π΅Π³ΠΊΠΎΠ»Π΅ΡΡΡΠΈΡ
ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ², Π²Ρ
ΠΎΠ΄ΡΡΠΈΡ
Π² ΠΎΡΠ½ΠΎΠ²Π½ΡΡ Π»Π΅Π³ΠΊΠΎΠ»Π΅ΡΡΡΡΡ ΡΡΠ°ΠΊΡΠΈΡ ΡΠΏΠΈΡΡΠΎΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΡ
ΠΆΠΈΠ΄ΠΊΠΎΡΡΠ΅ΠΉ. ΠΡΠ±ΡΠ°Π½ ΠΎΠΏΡΠΈΠΌΠ°Π»ΡΠ½ΡΠΉ Π½Π°Π±ΠΎΡ ΠΏΡΠ΅Π·ΠΎΡΠ΅Π½ΡΠΎΡΠΎΠ², ΠΊΠΎΡΠΎΡΡΠΉ Π°Π΄Π°ΠΏΡΠΈΡΠΎΠ²Π°Π½ ΠΊ ΠΎΡΠ½ΠΎΠ²Π½ΡΠΌ ΡΠ΅ΡΡ-Π²Π΅ΡΠ΅ΡΡΠ²Π°ΠΌ (ΠΏΡΠΎΠΏΠ°Π½ΠΎΠ½, ΠΏΡΠΎΠΏΠ°Π½ΠΎΠ»-1, ΠΏΡΠΎΠΏΠ°Π½ΠΎΠ»-2, Π±ΡΡΠ°Π½ΠΎΠ»-1, Π±ΡΡΠ°Π½ΠΎΠ»-2, ΡΡΠ°Π½ΠΎΠ», Π±ΡΡΠ°Π½ΠΎΠ½, Π°ΡΠ΅ΡΠ°Π»ΡΠ΄Π΅Π³ΠΈΠ΄, ΡΡΠΈΠ»Π°ΡΠ΅ΡΠ°Ρ, Π±ΡΡΠΈΠ»Π°ΡΠ΅ΡΠ°Ρ, Π²ΠΎΠ΄Π°). ΠΠΎΠ»ΠΎΠΆΠΈΡΠ΅Π»ΡΠ½ΠΎ ΠΎΡΠ΅Π½Π΅Π½Π° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΡΠΊΡΠΏΡΠ΅ΡΡΠ½ΠΎΠ³ΠΎ ΡΠΏΠΎΡΠΎΠ±Π° ΠΏΡΠ΅Π·ΠΎΠΊΠ²Π°ΡΡΠ΅Π²ΠΎΠ³ΠΎ ΠΌΠΈΠΊΡΠΎΠ²Π·Π²Π΅ΡΠΈΠ²Π°Π½ΠΈΡ Π΄Π»Ρ Π²ΡΡΠ²Π»Π΅Π½ΠΈΡ Π³ΡΡΠ±ΡΡ
ΡΠ°Π»ΡΡΠΈΡΠΈΠΊΠ°ΡΠΎΠ² ΡΠΏΠΈΡΡΠΎΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΡ
Π½Π°ΠΏΠΈΡΠΊΠΎΠ² Ρ Π²ΡΡΠΎΠΊΠΈΠΌ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ΠΌ ΡΡΠ°Π½ΠΎΠ»Π°. ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Ρ ΠΌΠ΅ΡΠΎΠ΄ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄Ρ Π΄Π»Ρ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ Π² ΡΠΌΠ΅ΡΠΈ ΠΏΠ°ΡΠΎΠ² ΠΎΡΠ΄Π΅Π»ΡΠ½ΡΡ
ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ² ΡΠΈΠ²ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ»Π°. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Π° ΠΊΠΎΡΡΠ΅Π»ΡΡΠΈΡ ΠΌΠ΅ΠΆΠ΄Ρ ΠΏΠ»ΠΎΡΠ°Π΄ΡΡ Β«Π²ΠΈΠ·ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΎΡΠΏΠ΅ΡΠ°ΡΠΊΠ°Β» ΡΠΈΠ³Π½Π°Π»ΠΎΠ² Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ΅Π½ΡΠΎΡΠΎΠ² ΠΈ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠ°ΠΌΠΈ Π³Π°Π·ΠΎΠ²ΠΎΠΉ Ρ
ΡΠΎΠΌΠ°ΡΠΎΠ³ΡΠ°ΡΠΈΠΈ. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΡΠΉ ΡΠΏΠΎΡΠΎΠ± ΡΡΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎ ΡΠΌΠ΅Π½ΡΡΠ°Π΅Ρ Π²ΡΠ΅ΠΌΠ΅Π½Π½ΡΠ΅ ΠΈ ΡΠΊΠΎΠ½ΠΎΠΌΠΈΡΠ΅ΡΠΊΠΈΠ΅ Π·Π°ΡΡΠ°ΡΡ ΡΡΡΠΈΠ½Π½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π°, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ Π² ΠΊΠΎΡΠΎΡΠΊΠΈΠ΅ ΡΡΠΎΠΊΠΈ Π²ΡΡΠ²ΠΈΡΡ ΡΠ°Π»ΡΡΠΈΡΠΈΠΊΠ°ΡΡ ΠΈ ΠΏΡΠΎΠ±Ρ, Π½Π΅ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡΠΈΠ΅ Π½ΠΎΡΠΌΠ°ΠΌ, ΠΎΠΏΡΠ΅Π΄Π΅Π»ΠΈΡΡ Π»Π΅Π³ΠΊΠΎΠ»Π΅ΡΡΡΠΈΠ΅ ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΠ΅ Π²Π΅ΡΠ΅ΡΡΠ²Π° ΡΠΈΠ²ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ»Π° Π² Π°Π»ΠΊΠΎΠ³ΠΎΠ»ΡΠ½ΡΡ
Π½Π°ΠΏΠΈΡΠΊΠ°Ρ
Π±Π΅Π· ΡΠ°Π·Π΄Π΅Π»Π΅Π½ΠΈΡ ΠΈ ΠΈΠ½ΠΎΠΉ ΠΏΡΠΎΠ±ΠΎΠΏΠΎΠ΄Π³ΠΎΡΠΎΠ²ΠΊΠΈ
New way of definition of an androstenon
By means of "an electronic nose" the problem of detection in salted pork fat of an androstenon is solved, even small concentration of which negatively affect consumer appeal of a product. The massif from eight differently selective gas sensors is applied to detecting of an androstenon. The massif is previously trained on easily volatile compounds of various classes (alcohols, ketones, water, nitrogen-containing connections). Significant differences in analytical signals of the massif of sensors at the maintenance of an androstenon in model test of salted pork fat at the level of 0.5 threshold limit values are established. Except an androstenon in crude salted pork fat also early signs of damage and also the overestimated moisture content are reliably fixed. Changes in test of salted pork fat at violation of storage conditions also authentically are registered a set of sensors though at the same time changes in color and a salted pork fat smell by tasters are not recorded. establishments of subtle differences in a smell of tests of salted pork fat are calculated parameters A (i/j) which are qualitative criteria of piezo-quartz microweighing. Parameters allow to identify in mix of substance and to track significant changes in structure of an equilibrium gas phase over tests. Responses of sensors with the modifiers sensitive to damage biomarkers are informative: alcohols, acids, ketones, nitrogen - and sulfur-containing connections while presence and the maintenance of an androstenon fix sensors with the modifiers sensitive to aromatic and cyclic hydrocarbons. A lot of the tests necessary for the analysis with double repetition did not exceed 5 g, measurement time β 60 with, the volume of an equilibrium gas phase of 5 cm3, an error β 10%. The analyzer of gases is reliable and easy-to-work.
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