Patent ID: 7014746

Claim:
A capillary array assembly usable in an electrophoretic instrument in such a manner that the capillary array assembly is adapted to be inserted into wells so that electrophoretic lanes for samples in the wells are formed, comprising: a plurality of capillaries to be inserted into the wells respectively so that the capillaries contact the samples; a plurality of electrodes adapted to contact the samples when the capillaries contact the samples; a common electrode portion electrically connected to the electrodes and adapted to contact an electrode member of the electrophoretic instrument to be electrically connected through the electrode member to an power source of the electrophoretic instrument for electrically energizing the electrodes, and a capillary array holder that holds the capillaries, the electrodes and the common electrode portion, wherein the common electrode portion is adapted to be electrically connected to the electrode member by fixing the capillary array holder to the electrophoretic instrument, and the electrode member is adapted to be urged elastically by an elastic member to contact the common electrode portion in such a manner that an electrical contact resistance therebetween is lowered.