An electrophoretic system is provided which allows for carrying out electrophoresis while monitoring and regulating the temperature and the electrical field gradient in the gel. In addition, photometric monitoring, including use of an optical stage, is provided so as to monitor the progress of the electrophoretic...http://www.google.com/patents/US5275710?utm_source=gb-gplus-sharePatent US5275710 - Gel electrophoresis system including optical stage, sample applicator and sample retriever
