Method of and apparatus for dispensing liquid
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United States of America Patent
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-
Mar 11, 1986
Grant Date -
N/A
app pub date -
Jan 17, 1985
filing date -
Jan 17, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A liquid pipetting system for aspirating and dispensing small samples of fluid and diluents. The pipetting system consists of a coaxial needle serving as the pipette tip and a metering system to control the fluids. Precise dispensing of small amounts of liquid from the inner needle is made possible by surrounding the sample liquid with a miscible diluting liquid thereby establishing a controlled interface and conveying the sample liquid into the receiving chamber with that miscible diluting liquid.
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