Capillary electrophoretic apparatus

A multi-capillary electrophoretic apparatus comprising:

• a capillary array in which a plurality of capillary columns are arranged, one ends of said capillary columns defining sample injection sides are fixed by a sample injection side holder, the other ends defining detection sides are aligned with each other on a plane and fixed by a detection side holder and a part to be detected is provided on positions of said detection sides of said capillary columns;
• a multi-capillary array electrophoresis part to which said sample injection side holder and said detection side holder are fixed so that samples are injected into said capillary columns, said sample injection side ends are dipped in a buffer solution, said detection side ends are dipped in another buffer solution and a electrophoresis voltage is applied through both said buffer solutions for performing electrophoresis in all said capillary columns,
• said multi-capillary array electrophoresis part including a detection side holder fixing part fixing said detection side holder and a parallelism adjusting mechanism adjusting the parallelism between a detection part and said part to be detected;
• and
• said detection part applying light to said part to be detected of said capillary array and detecting detection light by interaction between said light and said samples.

A multi-capillary electrophoretic apparatus comprising:

• a capillary array in which a plurality of capillary columns are arranged, one ends of said capillary columns defining sample injection sides are fixed by a sample injection side holder, the other ends defining detection sides are aligned with each other on a plane and fixed by a detection side holder and a part to be detected is provided on said detection side positions of said capillary columns;
• a multi-capillary array electrophoresis part to which said sample injection side holder and said detection side holder are fixed so that samples are injected into said capillary columns, said sample injection side ends are dipped in a buffer solution, said detection side ends are dipped in another buffer solution and a electrophoresis voltage is applied through both said buffer solutions for performing electrophoresis in all said capillary columns;
• and
• an epi-optical system condensing and projecting light onto one said capillary column on said part to be detected of said capillary array and receiving light affected by interaction with said samples,
• and a scanning mechanism reciprocally moving said epi-optical system along a straight line perpendicular to the electrophoresis direction while automatically adjusting the distance between said part to be detected and said epi-optical system in correspondence to a detection signal at the time of performing scanning along said straight line.