Capillary electrophoretic apparatus

A capillary cassette, comprising:

• a plurality of capillary columns with each capillary column having a first end portion, an opposite second end portion and an intermediate portion disposed between the first and second end portions;
• a boxed-shaped first cassette holder having a pair of opposing surfaces containing a plurality of holes extending therethrough and therebetween with the plurality of holes arranged in a matrix of criss-crossing rows and columns, each hole sized to receive a respective one of the plurality of capillary columns at the first end portion thereof with respective distal ends of the first end portions projecting from one surface of the first cassette holder;
• a tube defining a conduit extending therethrough, the conduit sized to receive and retain the plurality of capillary columns as a bundle at the second end portion thereof;
• and
• a boxed-shaped second cassette holder having a window formed therethrough, the second cassette holder adapted to receive the plurality of capillary columns at the intermediate portions thereof in a manner that individual ones of the capillary columns are arranged sequentially in a juxtaposed manner for exposure of the individual ones of the capillary columns through the window.