Detecting light in a capillary electrophoresis optical system includes input and output windows in the outside surface of a capillary tube. The width of the windows is not substantially greater than the bore of the tube. A fiber optic input is spaced from the capillary tube so that the light is directed...http://www.google.de/patents/US5312535?utm_source=gb-gplus-sharePatent US5312535 - Capillary electrophoresis detection
