Electrophoresis is a technique that separates biomolecules according to size, shape and charge. Typically, the biomolecules are separated using a gel which has an electric field applied to it. Scientific uses for electrophoresis include sample analysis and biomolecule purification. Free flow electrophoresis is interesting because it uses a liquid rather than a gel phase to separate the biomolecules. This type of system is manufactured by FFE Service of Munich, Germany.