| 摘要 |
A cytometer flowcell is configured to induce a substantial change of direction of a conducting fluid as it enters and exits a hydrodynamic focusing zone, where a sample fluid is combined with the conducting fluid. The flowcell includes a combined fluid conduit and a sample fluid injection probe. The combined fluid conduit defines a combined fluid inlet and an internal combined fluid flowpath, while a conducting fluid flowpath is defined outside of the combined fluid conduit. The sample fluid injection probe has an outlet that is spaced from the combined fluid inlet to form a hydrodynamic focusing zone. The combined fluid conduit, and the conducting fluid flowpath outboard of the combined fluid conduit, are arranged so that in operation, the conducting fluid will change direction by at least about 90 degrees as the conducting fluid enters the focusing zone and exits along the combined fluid flowpath. |
