Zonal electrophoresis and isoelectric focusing of proteins and virus particles in density gradients of small volume |
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Authors: | B.D. Korant K. Lonberg-Holm |
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Affiliation: | Central Research Department, E. I. du Pont de Nemours and Company, Wilmington, Delaware 19898 USA |
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Abstract: | Proteins and virus particles were separated by zonal electrophoresis or isoelectric focusing in glass tubes of small volume. The tubes were covered at the bottom with dialysis membranes and sucrose gradients containing either buffer or ampholytes were generated directly into them. When ampholytes were employed, reproducible pH gradients were generated during electrophoresis. After the separations were finished, dense sucrose was pumped into the bottom of each tube and the gradient was fractionated from the top; the recovery of virus was nearly complete. |
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