Post-capillary Immobilon-P membrane fraction collection for capillary electrophoresis.

A simple, cost-effective and efficient method of continuous fraction collection for capillary electrophoresis is described. The method employs a membrane, such as polyvinylidene difluoride, onto which the separated components from a capillary electrophoresis capillary are directly collected to overcome the problem of analyte dilution and to facilitate the fraction collection process. Model proteins are separated and collected onto a polyvinylidene difluoride membrane.