摘要 |
<p>A preanalysis chamber (10) having reduced turbulence is provided for a flow particle analyzer. The chamber (10) has a conical diverging section (17) for decelerating sheath fluid flow to form a laminar profile, followed by a conical converging section (31) for accelerating flow. A sample inlet tube (44) is supported in the chamber (10) near the interface (20) between the diverging and converging sections, and terminates (43) in the laminar, accelerated sheath flow. The sample enters the laminar sheath flow to form a discrete sample stream.</p> |