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Particle & Dispersion AnalysisCharacterization & Testing

Filtration and membrane testing

By L.U.M. GmbH

Dispersions are filtered in many branches of industry. The systems required for this are usually designed on the basis of complex and time-consuming tests on a laboratory and/or pilot plant scale, taking safety factors into account. Classic nutsche filters in the form of pressure or vacuum filtration are often used for the experiments. In the course of the development of biotechnology and nanotechnology, new challenges arise, since in these areas only small and usually very expensive sample quantities are available. An alternative method for effective and rapid quantification is analytical photocentrifugal filtration (ACF) based on STEP-technology in LUMiSizer. It enables the filtration behavior of dispersions and filter media to be determined. The automatic detection of the meniscus position of the filtrate determines the filtration behavior over time. Single Particle Optical Counting based on SPLS-technology in LUMiSpoc, complements above ACF to detect the particle concentration and the particle size distribution in the filtrate.