Methods of transporting fluids within an analytical rotor
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United States of America Patent
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Dec 2, 1997
Grant Date -
N/A
app pub date -
Dec 4, 1995
filing date -
Apr 2, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention provides an analytical rotor which holds a fluid in a chamber, typically to allow mixing with a reagent, and transfers the fluid to a receiving chamber in the rotor. The rotor comprises a holding chamber having an single exit duct and a receiving chamber connected to the holding chamber through the exit duct. The exit duct prevents flow at a first rotational speed and allows flow at a second, higher rotational speed. The exit duct may include a capillary passage in which capillary forces prevent flow until the rotational speed is increased. Alternatively, the exit duct may include a siphon.
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