Abstract
AbstractA simple method of generating pH gradients for use in capillary isoelectric focusing was described and evaluated experimentally. In the proposed scheme, the cone shaped capillary filled with a conventional buffer is used to produce an effect of nonuniform heating which then generate temperature and corresponding pH gradients along the capillary axis. Concentration and separation of proteins by applying a simple isoelectric focusing system based on this principle is demonstrated. An inexpensive absorption imaging detection system is used to continuously monitor progress of the separation and concentration processes.
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