Patent ID: 6531044
Filing Date: 2003-03-11
Classification: G01N

Abstract:
A capillary array electrophoresis apparatus comprising:plural capillaries for separating fluorephore-labeled samples by electrophoresis, said plural capillaries being arranged in a same plane; a laser source for irradiating said plural capillaries; means for scanning a laser beam from the laser source; a fluorescence detecting system which detects fluorescence emitted by said fluorephore-labeled samples, the fluorescence detecting system having a lens to collect said fluorescence from said capillaries and being fixed during the electrophoresis, wherein the relation &thgr;03âˆ’tanâˆ’1(D/2d) is satisfied where, &thgr;0 (&lE;90Â°) is a maximum value of an angle between said laser beam and said same plane, &thgr;3 (&lE;90Â°) is an angle between a central axis of said lens and said same plane, D is the diameter of entrance aperture of said lens, and d is the minimum distance between the center position of entrance aperture of said lens and position of said capillaries to be irradiated.