| 摘要 |
<p>There is disclosed a first capillary conduit having a minute aperture therein, the aperture dividing the first conduit into a separate and a common section, there being a first fluid conducting path formed through the separate and common sections. A second capillary conduit has one end thereof intersecting the first conduit and mating with the minute aperture to form a second fluid conducting path through the second conduit and the common section of the first conduit. The minute aperture forms a first precise interface between the first fluid path and the second conduit. The capillary cross-section of the first conduit separate section adjacent the minute aperture forms a second precise interface between the second fluid conducting path and the separate section, whereby fluid can traverse the first fluid path substantially free from contamination from fluids adjacent the first precise interface and fluids can traverse the second path substantially free from contamination from fluid adjacent the second precise interface.</p> |
