Electrophoresis in general uses an electric field to separate particles in a medium (like a gel) based on their size, charge, or a binding affinity. This instrument, developed by Spinco in 1954, contained three components: an electrolytic cell in which the separations of particles occur, a regulated direct current power supply for the cell, and a recording densitometer to quantify the results on the paper strips.
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Coyne & Blanchard, and Russell Illig. “Beckman Model R Paper Electrophoresis System,” circa 1954. Beckman Historical Collection, Box 59, Folder 111. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/s1784m30t.
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