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  • Title: Sample application by in-gel rehydration improves the resolution of two-dimensional electrophoresis with immobilized pH gradients in the first dimension.
    Author: Rabilloud T, Valette C, Lawrence JJ.
    Journal: Electrophoresis; 1994 Dec; 15(12):1552-8. PubMed ID: 7536671.
    Abstract:
    We describe a modification in the sample application mode for isoelectric focusing with immobilized pH gradients. Instead of being applied at the surface of the gel in a sample cup, the sample is introduced into the gel during the immobilized pH gradient strip rehydration step. This modification implies the use of low percentage gels (below 3.5% T) and specially designed, but simple, rehydration chambers. The main advantages are a uniform resolution without side effects and the possibility of handling large sample volumes (500 microL for a standard 3 x 160 x 0.5 mm strip), allowing micropreparative work (milligram samples) with a simple experimental design.
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