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Title:
ELECTRONIC PIPETTER AND COMPENSATION MEANS FOR ELECTROPHORETIC BIAS
Document Type and Number:
Japanese Patent JP3795823
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide an electronic pipetter which is adapted to a very small fluid system used to move an object substance by an electroosmotic force.
SOLUTION: The electronic pipetter is provided with a capillary comprising a channel. An electrode is attached along the length in the outside of the capillary, and it is terminated at the end part of the capillary in the shape of an electrode ring. When the end part of the capillary is arranged in a substance source, a substance is guided electrokinetically by operating a voltage on the electrode and the electrode in a target reservoir by which the channel communicates with a fluid. An object substance region in one row, a high- and-low ion concentration buffer or a spacer region can be formed inside the channel so as to be easily introduced into the very small fluid system.


Inventors:
Perth, Jay. Wallace
Nap, Michael Earl.
Application Number:
JP2002102296A
Publication Date:
July 12, 2006
Filing Date:
June 25, 1997
Export Citation:
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Assignee:
CALIPER LIFF SCIENCES INCORPORATED
International Classes:
G01N27/447; B01F13/00; G01N31/20; B01J19/00; B01L3/00; F04B17/00; F04B19/00; G01N27/26; G01N37/00; H02N11/00; B01L3/02; (IPC1-7): G01N27/447; G01N37/00; //G01N31/20
Domestic Patent References:
JP4221764A
Other References:
本田進、寺部茂,キャピラリー電気泳動-基礎と実験-,株式会社講談社,1995年 4月 1日,p.103-104
David N.Heiger,キャピラリー電気泳動入門,横河アナリティカルシステムズ株式会社,1994年 4月15日,p.79-80
Attorney, Agent or Firm:
Kazuho Kawarada