The measurement services offered by the University of Eastern Finland can be used diversely in different fields to promote technological development. Our measurement services provide access to the university’s research infrastructure and related research expertise in areas such as materials research, product development, quality control and analysis of environmental samples. Measurements are used in physical and chemical analyses of the properties, composition and structure of substances and materials.
Below you will find more detailed descriptions of our services. Please do not hesitate to contact us for more information.
Our services include studying the electrochemical corrosion properties of materials (e.g. corrosion rate, passivation tendency, coating quality) by open-circuit and potentiodynamic polarization measurements according to standards. As a result, we determine the corrosion potential, corrosion current density and polarisation resistance of the material.
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We determine the number and size of particles, polymer types and mass estimates for samples with pre-established protocols, such as sea water, fresh water, drinking water, bottled drinks, stormwater and sediment.
Learn more: Determination of microplastics from environmental samples with FTIR microspectroscopy (PDF)
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Our services include gas adsorption and desorption measurements on a dry sample, determination of specific surface area (BET), determination of pore size and volume (BJH) and microporosity determinations. The measurements are carried out either with nitrogen gas or carbon dioxide.
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Our service includes the detection of phase transitions as a function of temperature (melting, glass transition, freezing, crystallisation) and the determination of transition temperature and enthalpy (temperature range -100° C to +725° C).
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Our services include testing of the mechanical strength of materials (e.g. compression, tension, flexure, torsion, cyclic fatigue) in the capacity range from 1 N to 25 kN according to various standards and determining the strength properties of the material/specimen.
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We offer quantitative analysis of the elements in samples (carbon, hydrogen, nitrogen, sulphur). The method is suitable for solid, viscous and solution samples.
Learn more: Infrastructure of Chemistry Department
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Our service includes ellipsometer measurements to determine the structures and optical properties of thin films. We use a spectral ellipsometer of the visible and near-infrared range to measure the optical properties of materials and the thickness of thin films.
Learn more: Measuring and imaging
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Microspectroscopy provides information on the composition of the sample and its local distribution, which is why it is well suited for contamination analyses or for examining the distribution of components in composite materials, for example. The methods are also suitable for biological samples (e.g. bone, cartilage, brain tissue, cells) where compounds and their location in the tissues can be viewed.
Learn more: Materials research with FTIR and Raman microspectroscopy (pdf)
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Our services include testing of the mechanical strength of materials (e.g. compression, tension, flexure) in the capacity range from 0.01 N to 1 kN according to various standards and determining the strength properties of the material/specimen.
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IR and UV-VIS spectroscopy are used to determine the chemical composition of organic materials. Infrared spectroscopy is typically used in the characterisation of materials, for example in connection with product development and quality control. It can also be used for contamination analysis and determination of concentrations with certain limitations. UV-VIS applications include the determination of concentrations in solutions.
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We offer versatile microscopy measurements for optical and mechanical applications, including high-resolution surface measurements and imaging. The methods are suitable for centimetre-sized solids.
Learn more: Measuring and imaging
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Our service includes the determination of the frictional and wear properties of material pairs according to standards, resulting in the determination of the coefficient of friction and wear rate of the surface.
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Our service includes analysing the structure of sleep and the physiological processes during sleep. The study can be used to investigate, for example, respiratory disorders or behavioural disorders during sleep. The study can be used as a reference measurement, for example, in the validation processes of medical devices. The study requires the subject to stay in the SmartSleep laboratory overnight. Standardised alertness measurements to be performed on the following day may be included in the study.
Learn more: SmartSleep Lab
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We perform surface shape and surface quality measurements for optical and mechanical applications. We determine the surface roughness profile and roughness parameters (Ra, Rt, Rz, etc.) of materials according to various standards. The methods are suitable for slightly curved, centimetre-sized surfaces, either transparent or opaque.
Learn more: Measuring and imaging
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We offer spectral measurement services and accurate colour analyses of solid and liquid samples. The optical reflection, transmission and absorption characteristics of the samples are measured with high accuracy in the wavelength ranges of ultraviolet radiation, visible light and infrared radiation, and fluorescence measurements are done at the wavelengths of ultraviolet radiation and visible light.
Learn more: Measuring and imaging
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Our electrode and battery cell research services include galvanostatic studies, cyclic voltammetry and electrochemical impedance spectroscopy measurements. Electrodes can be manufactured and cells assembled in an argon glove box.
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We examine the change in mass of the sample as a function of temperature, from which physical phenomena (such as adsorption, absorption and desorption) or chemical phenomena (such as chemisorption, degradation and oxidation) can be analysed. The measurements can be performed either in synthetic air or in nitrogen gas.
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Our service includes the identification of crystalline phases in a multi-crystalline sample (powder or solid). The measurements are used to determine, for example, the relative mass fractions of phases and crystal sizes, or to examine surfaces and coatings using the GID method.
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Our service includes elemental analysis from sodium (Na) to uranium (U) for various materials. XRF is a non-destructive technique suitable for solids, powders and liquids. Also, the metal concentrations in water solutions can be analyzed with the technology developed in-house.
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Our service includes analysing the surface chemistry of materials. XPS provides detailed information on the elemental composition and chemical status of material surface layers at depths of a few nanometres. The technique is ideal for examining thin films, coatings and contamination layers.
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