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Quality control of coal with elemental analyzers
29 Mar 2023Coal is an important fossil fuel. Compared to the very large amount of mined coal, the required sample volume for the characterization of coal, varying from a few mg up to 1 gram, seems unbelievably small. Correct sampling and sample preparation is a must for any subsequent measurement. The correct characterization of coal is important for its quality assessment and further use. Depending on the product quality, coal is suitable for coking, steel production or electrical power generation. In this article, Verder Scientific describes the chemical background of proximate and ultimate coal analysis, and their correct determination with ELTRA’s combustion and thermogravimetric analyzers.
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Particle CharacterizationParticle characterization instruments are used to determine particle size distribution, shape, surface area, zeta potential, density and porosity of particles and materials. Multiple tecchniques are available for determining particle size, shape and count including dynamic light scattering (DLS), laser diffraction, electrozone (Coulter technique), imaging particle analysis and single particle optical sensing. Determine the density of your material with a gas pycnometer or examine its surface area and porosity with gas adsorption analyzers and mercury porosimeters. Find the best particle characterization instruments in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Quality ControlQuality control is needed in all production processes. Quality control is a monitoring procedure or set of procedures that are put in place to ensure that a manufactured product adheres to a defined set of quality criteria. Elemental AnalysisElemental analysis involves determining the elemental composition of a sample, often used in environmental, pharmaceutical, and material sciences. Techniques like ICP-MS, X-ray fluorescence, and atomic absorption spectroscopy allow precise quantification of elements such as metals and nonmetals in complex matrices. Browse our peer-reviewed product directory to find the best elemental analysis tools, compare products, check reviews, and get pricing directly from manufacturers.