Hydrodynamic injector

A hydrodynamic injector for substantially concurrently loading fluid samples to be analyzed into multiple capillary tubes of a capillary electrophoresis system, said tubes having first and second ends, said injector comprising:

• an enclosure defining a pressure chamber for holding multiple receptacles, each containing a fluid sample therein,
• apertures in the enclosure for passing capillary tubes into a position wherein first ends of the tubes are positioned in said pressure chamber in fluid communication with the samples in respective receptacles,
• electrodes on the enclosure extending into the pressure chamber for reception in said receptacles;
• said enclosure having a gas inlet for pressurizing the pressure chamber whereby said fluid samples are substantially concurrently forced from respective receptacles into the first ends of respective capillary tubes in preparation for a capillary electrophoresis operation.