04574850 is referenced by 32 patents and cites 12 patents.

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.

Title
Method of and apparatus for dispensing liquid
Application Number
6/692409
Publication Number
4574850
Application Date
January 17, 1985
Publication Date
March 11, 1986
Inventor
James E Davis
Wilmington
DE, US
Assignee
E I Du Pont de Nemours and Company
DE, US
IPC
B65B 3/04
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