Core Facilities Center

• ensuring the receipt of results of research and scientific and technical (experimental) developments that have national significance and international recognition;
• increasing the level of publication of research results in publications indexed by Scopus and Web of Science Core Collection databases, and relevant scientometric indicators;
• assistance in the implementation of state target scientific and technical programs and scientific projects in certain priority thematic areas of research and scientific and technical (experimental) developments;
• ensuring the conduction of scientific materials research by scientists of the university, other institutions of higher education at the modern scientific and methodological level, in particular with the involvement of international scientific partners;
• promotion of international scientific and technical cooperation;
• wider involvement of students, master students, postgraduates, and young scientists in research and development work.

• performance of works related to conducting material research by methods of transmission and scanning electron microscopy, X-ray microanalysis, radiography, spectrophotometry, chromatography, and other analytical methods;
• providing access for materials research to scientific and scientific and pedagogical workers and students of Sumy State University and scientists from other institutions of higher education, in particular Sumy National Agrarian University, Sumy State Pedagogical University named after A.S. Makarenko, Poltava National Technical University named after Yu. Kondratiuk, Chernihiv National Technological University;
• provision of paid services on materials research in accordance with the established procedure.

It is intended for measurements of the linear sizes, the form, orientation, and other parameters of nanostructures and a microrelief of surfaces of various objects.

Allows you to study the nano characteristics of metals and alloys; oxidation/corrosion; welding, polishing; magnetic materials and superconductors; ceramic, composite, and polymeric materials; geological sections, minerals; soft materials: polymers, pharmaceuticals, filters, gels, tissues, plant materials, etc., as well as to conduct elemental analysis of the test sample by X-ray energy dispersion spectroscopy.

Features of SEO-SEM Inspect S50-B:

• AZtecOne energy dispersion spectrometer with X-MaxN20 detector (manufacturer Oxford Instruments plc);
• source of electrons in the gun: tungsten cathode with thermoelectric emission;
• possibility of electromagnetic adjustment of the aperture of a beam without installation of the block of mechanical diaphragms;
• the function of automatic selection of the optimal glow current of the cathode and automatic alignment of the electronic gun;
• octopus design of the stigma, electromagnetic with the function of memorizing the parameters of the stigma to work at different magnifications and accelerating voltages;
• electromagnetic column centering system;
• automatic adjustment of the current of electromagnetic lenses and automatic system of adjustment of the electron-optical system with a possibility of manual adjustment of settings.

Allows:

• to study the microstructure and phase composition of objects in nanotechnology, materials science, crystallography, geology, microelectronics, biology, medicine, and other fields;
• observe and photograph images of objects in a wide range of magnifications, get diffraction patterns;
• examine objects when they are tilted and rotated using a goniometric device.

Features of TEM-125K:

• high resolution on the crystal lattice and at points;
• the presence of three modes of operation: a large angle of inclination of the object, high resolution, high contrast for medical and biological objects;
• oil-free pumping of the column;
• 4-lens projection unit with image rotation compensation and microdiffraction pattern.

Allows you to study the properties of different substances based on the analysis of the spectral composition of light of the optical range passing through the substance in relation to different types of electromagnetic radiation. Used to measure the spectral characteristics of radiation and objects that interact with radiation, as well as for spectral analysis and photometry.

Areas of application: medicine, pharmaceuticals, industrial environmental monitoring, commodity inspection, agricultural chemistry, metallurgy, geology, mechanical engineering, petrochemical industry.

Features of Lasany LI-722:

• Wavelength: 325-1000 nm
• Wavelength accuracy: less than 2 nm
• Repeatability wavelength: less than 1 nm
• Transmission accuracy: +/- 0.5%
• Transmission frequency: less than 0.2%
• Bandwidth spectrum: 2 nm / 1 nm
• Scattered light: less than 0.5% (at 360 nm, NaNO)
• Light drift current: 0.5% / 3 min
• Dark drift current: 0.2% / 3 min
• Sample size: 10 mm

Allows you to analyze a wide range of substances and can be used to control the quality of food, drugs, water contaminants, and more.

Tasks solved by the chromatograph within the work of the Center:

• determination of bactericidal and drug residues in animal tissues, milk, and eggs;
• measurement of aflatoxins in cereals and determination of mycotoxins in cereals;
• determination of cannabinoid compounds.

Features of Agilent 1200:

• wide range of flow rates (up to 10 ml/min)
• capacity up to 2000 samples per day.

It is intended for a wide range of X-ray structural researches of various materials.

Allows you to study the structure of crystalline and amorphous materials, namely:

• accurately determine the lattice parameters of crystalline substances;
• determine the size of the crystallites;
• study the stress state of matter;
• investigate the texture and conduct a phase analysis;
• to study the structural changes that occur in deformed metals when heated;
• determine the amorphousness of the substance.

Allows to carry out the express qualitative and quantitative analysis of the structure of metal alloys, powders, liquids, deposits on filtering elements, bioassays, foodstuff on the content of chemical elements from Na (atomic number Z = 11) to U (Z = 92) in a wide range of concentrations.

Features of ElvaX Light SDD:

The accuracy of mass fractions of metals is not worse than 0.1%.

The limits of detection of impurities of heavy metals in the light matrix are not worse than 1 ppm.

Areas of application: ferrous and non-ferrous metallurgy, medical diagnostics, ecological monitoring, customs examinations, criminology, archeology, chemical industry, oil refining industry, geology and mineralogy, food industry.