Patent ID: 7534335
Filing Date: 2009-05-19
Classification: G01N

Abstract:
1. A multiplexed, absorbance-based capillary electrophoresis system for analyzing multiple samples simultaneously without a mask or slit comprising: a reservoir manifold having a cavity for containing a buffer solution, a plurality of capillary an electrode extending through the electrode aperture into the cavity; a planar array of capillary tubes having inlet ends and outlet ends, the outlet ends extending through the capillary apertures and into the cavity; a vent valve attached directly to the vent aperture for releasing pressure from the cavity; a second vent valve attached to the reservoir manifold through a tube; a photodetector for detecting light passing through the capillary tubes positioned parallel to the planar array of capillary tubes at a distance such that the array of capillary tubes is visible and in focus; and a light source positioned with respect to the photodetector so that the majority of light that passes between capillary tubes in the planar array of capillary tubes does not reach the photodetector.