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Densitometers, Laboratory, Scanning Light

Definition : Laboratory densitometers designed to determine the optical density of patterns found on the media (e.g., cellulose membranes) commonly used in biotechnology tests. These densitometers typically include a light source, a monochromator, devices to provide sample motion or analysis over a given area, optical systems to direct and regulate light waves, and a photodetector; some scanning densitometers include computer capabilities for the analysis of densitometric patterns. Scanning light laboratory densitometers are used to assess the developed pattern or protein fractions on cellulose-acetate membranes after electrophoresis (electrophoretogram) as well as the results of thin-layer chromatography tests.

Entry Terms : "Scanning Light Densitometers"

UMDC code : 16905

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